ADOPTS WITH AMENDMENTS:

NFPA 1, 2015

Heads up: There are no amended sections in this chapter.
The storage, use, and handling of liquefied petroleum gases (LP-Gas) shall comply with the requirements of this chapter; NFPA 58, Liquefied Petroleum Gas Code, and Sections 60.1 through 60.4 of this Code.
Where the provisions of Chapter 69 or NFPA 58 conflict with the provisions of Chapter 60, the provisions of this chapter and NFPA 58 shall apply.
Plans for stationary installations utilizing storage containers with aggregate water capacity exceeding 4000 gal (15.2 m3), and all rooftop installations of ASME containers shall be submitted to the AHJ before the installation is started by the person or company that either installs or contracts to have the containers installed. [See also 6.20.11.1(F) of NFPA 58.] [58:4.3.1]
Permits, where required, shall comply with Section 1.12.
Containers shall be designed, fabricated, tested, and marked (or stamped) in accordance with the regulations of the U.S. Department of Transportation (DOT); the ASME Boiler and Pressure Vessel Code, Section VIII, "Rules for the Construction of Unfired Pressure Vessels"; or the API-ASME Code for Unfired Pressure Vessels for Petroleum Liquids and Gases, except for UG-125 through UG-136. [58:5.2.1.1]
Used containers constructed to specifications of the Association of American Railroads shall not be installed. [58:5.2.1.1(A)]
Adherence to applicable ASME Code case interpretations and addenda that have been adopted and published by ASME 180 calendar days prior to the effective date of NFPA 58 shall be considered as compliant with the ASME Code. [58:5.2.1.1(B)]
Where containers fabricated to earlier editions of regulations, rules, or codes listed in 69.2.1.1.1, and of the Interstate Commerce Commission (ICC) Rules for Construction of Unfired Pressure Vessels, prior to April 1, 1967, are used, the requirements of Section 1.4 of NFPA 58 shall apply. [58:5.2.1.1(C)]
Containers that have been involved in a fire and show no distortion shall be requalified for continued service before being used or reinstalled. [58:5.2.1.2]
Cylinders shall be requalified by a manufacturer of that type of cylinder or by a repair facility approved by DOT. [58:5.2.1.2(A)]
ASME or API-ASME containers shall be retested using the hydrostatic test procedure applicable at the time of the original fabrication. [58:5.2.1.2(B)]
All container appurtenances shall be replaced. [58:5.2.1.2(C)]
DOT 4E specification (aluminum) cylinders and composite cylinders involved in a fire shall be permanently removed from service. [58:5.2.1.2(D)]
ASME paragraph U-68 or U-69 containers shall be permitted to be continued in use, installed, reinstalled, or placed back into service. Installation of containers shall be in accordance with all provisions listed in NFPA 58. (See Section 5.2, Table 5.2.4.2 and Table 5. 7.2.5(A), and Annex D of NFPA 58.) [58:5.2.1.3]
Containers that show excessive denting, bulging, gouging, or corrosion shall be removed from service. [58:5.2.1.4]
Except for containers used in cargo tank vehicle service, ASME containers of 3000 gal (11.4 m3) water capacity or less used to store anhydrous ammonia shall not be converted to LP-Gas fuel service. [58:5.2.1.5]
Repairs or alteration of a container shall comply with the regulations, rules, or code under which the container was fabricated. Repairs or alteration to ASME containers shall be in accordance with the ANSI/NB23 National Board Inspection Code. [58:5.2.1.6]
Field welding shall be permitted only on saddle plates, lugs, pads, or brackets that are attached to the container by the container manufacturer. [58:5.2.1.7]
Containers for general use shall not have individual water capacities greater than 120,000 gal (454 m3). [58:5.2.1.8]
Containers in dispensing stations not located in LP-Gas bulk plants, industrial plants, or industrial applications shall have an aggregate water capacity not greater than 30,000 gal (114 m3). [58:5.2.1.9]
Heating or cooling coils shall not be installed inside storage containers. [58:5.2.1.10]
ASME containers installed underground, partially underground, or as mounded installations shall incorporate provisions for cathodic protection and shall be coated with a material recommended for the service that is applied in accordance with the coating manufacturer's instructions. [58:5.2.1.11]
Cylinders shall incorporate protection against physical damage to cylinder appurtenances and immediate connections to such appurtenances when not in use by any of the following means:
  1. A ventilated cap
  2. A ventilated collar
  3. A cylinder valve providing inherent protection as defined by DOT in 49 CFR 173.301(h)(3) [58:5.2.6.1]
Protection of appurtenances of portable containers, skid tanks, and tanks for use as cargo tanks of more than 1000 lb (454 kg) water capacity [nominal 420 lb (191 kg) propane capacity] shall comply with 69.2.1.2.2.1 through 69.2.1.2.2.3. [58:5.2.6.2]
Appurtenance protection from physical damage shall be provided by recessing, by protective housings, or by location on the vehicle. [58:5.2.6.2(A)]
Appurtenance protection shall comply with the provisions under which the containers are fabricated. [58:5.2.6.2(B)]
Appurtenance protection shall be secured to the container in accordance with the ASME code under which the container was designed and built. [58:5.2.6.2(C)]
Vertical ASME containers of over 125 gal (0.5 m3) water capacity for use in permanent installations in stationary service shall be designed with steel supports that allow the container to be mounted on and fastened to concrete foundations or supports. [58:5.2.7.1]
Steel supports shall be designed to make the container self-supporting without guy wires and to withstand the wind and seismic (earthquake) forces anticipated at the site. [58:5.2.7.1(A)]
Steel supports shall be protected against fire exposure with a material having a fire resistance rating of at least 2 hours. [58:5.2.7.1(B)]
Continuous steel skirts having only one opening of 18 in. (460 mm) or less in diameter shall have 2-hour fire protection applied to the outside of the skirt. [58:5.2.7.1(C)]
ASME containers to be used as portable storage containers, including movable fuel storage tenders and farm carts for temporary stationary service (normally not more than 12 months duration at any location), shall comply with 69.2.1.3.2.1 through 69.2.1.3.2.4. [58:5.2.7.2]
The legs or supports, or the lugs for the attachment of legs or supports, shall be secured to the container in accordance with the ASME code under which the container was designed and built. [58:5.2.7.2(A)]
The attachment of a container to either a trailer or semi-trailer running gear, or the attachments to the container to make it a vehicle, so that the unit can be moved by a conventional over-the-road tractor, shall comply with the DOT requirements for cargo tank service. [58:5.2.7.2(B)]
The unit specified in 69.2.1.3.2.2 shall be approved for stationary use. [58:5.2.7.2(C)]
Movable fuel storage tenders, including farm carts, shall be secured to the trailer support structure for the service involved. [58:5.2.7.2(D)]
Portable tank design and construction of a full framework, skids, or lugs for the attachment of skids, and protection of fittings shall be in accordance with DOT portable tank specifications. The bottom of the skids shall be not less than 2 in. (50 mm) or more than 12 in. (300 mm) below the outside bottom of the tank shell. [58:5.2.7.3]
Cylinders shall be marked as provided in the regulations, rules, or code under which they are fabricated. [58:5.2.8.1]
Where LP-Gas and one or more other compressed gases are to be stored or used in the same area, the cylinders shall be marked "Flammable" and either "LP-Gas," "Propane," or "Butane," or shall be marked in accordance with the requirements of 49 CFR, "Transportation." [58:5.2.8.1(A)]
When being transported, cylinders shall be marked and labeled in accordance with 49 CFR, "Transportation." [58:5.2.8.1(B)]
Cylinders shall be marked with the following information:
  1. Water capacity of the cylinder in pounds
  2. Tare weight of the cylinder in pounds, fitted for service [58:5.2.8.2]
The markings specified for ASME containers shall be on a stainless steel metal nameplate attached to the container, located to remain visible after the container is installed. [58:5.2.8.3]
The nameplate shall be attached in such a way as to minimize corrosion of the nameplate or its fastening means and not contribute to corrosion of the container. [58:5.2.8.3(A)]
Where the container is buried, mounded, insulated, or otherwise covered so the nameplate is obscured, the information contained on the nameplate shall be duplicated and installed on adjacent piping or on a structure in a clearly visible location. [58:5.2.8.3(B)]
Stationary ASME containers shall be marked with the following information:
  1. Service for which the container is designed (e.g., underground, aboveground, or both)
  2. Name and address of container supplier or trade name of container
  3. Water capacity of container in pounds or U.S. gallons
  4. MAWP in pounds per square inch
  5. Wording that reads "This container shall not contain a product that has a vapor pressure in excess of ___ psig at 100°F" (see Table 5.2.4.2 of NFPA 58)
  6. Outside surface area in square feet
  7. Year of manufacture
  8. Shell thickness and head thickness
  9. OL (overall length), OD (outside diameter), and HD (head design)
  10. Manufacturer's serial number
  11. ASME Code symbol
  12. Minimum design metal temperature ___ °F at MAWP psi
  13. Type of construction "W"
  14. Degree of radiography "RT- ___ " [58:5.2.8.3(C)]
In addition to the markings required by this Code, nameplates on cargo tanks shall include the markings required by the ASME Boiler and Pressure Vessel Code and the DOT. [58:5.2.8.3(D)]
Warning labels shall meet the following requirements:
  1. Warning labels shall be applied to all cylinders of 100 lb (45.4 kg) propane capacity or less that are not filled on site.
  2. Warning labels shall include information on the potential hazards of LP-Gas. [58:5.2.8.4]
All containers that contain unodorized LP-Gas products shall be marked "NOT ODORIZED." [58:5.2.8.5].
The marking shall have a contrasting background surrounded by a rectangular border in red letters and red border in the sizes shown in Table 69.2.1.4.5.1. [58:5.2.8.5(A)]

Table 69.2.1.4.5.1 "NOT ODORIZED" Label Size

Water Capacity Letter Height Border Width
gal m3 in. cm in. cm
≥499 ≥1.89 4 10.0 1/2 1.3
49—498 0.19—1.88 11/2 3.7 5/l6 0.8
2.6—48 0.01—0.18 3/4 1.8 1/4 0.6
1—2.5 0.004—0.009 3/8 1.0 1/l6 0.2

[58:Table 5.2.8.5(A)]

The markings shall be on both ends or on both sides of a container or on both sides and the rear of cargo tanks. [58:5.2.8.5(B)]
Container appurtenances and regulators shall be fabricated of materials that are compatible with LP-Gas, shall be resistant to the action of LP-Gas under service conditions, and shall comply with Sections 5.7 and 5.8 of NFPA 58.
Piping (including hose), fittings, and valves shall comply with Section 5.9 of NFPA 58.
Section 69.3 shall apply to the following:
  1. Location and field installation of LP-Gas systems that use components, subassemblies, container assemblies, and container systems that are fabricated in accordance with Chapter 5 of NFPA 58
  2. Location of containers and liquid transfer systems
  3. Installation of container appurtenances and regulators
  4. Installation of piping (including flexible connectors and hose), hydrostatic relief valves, and piping service limitations
  5. Installation of equipment
  6. Testing of piping systems [58:6.1.1]
LP-Gas containers shall be located outside of buildings unless they are specifically allowed to be located inside of buildings. [58:6.2.1]
LP-Gas containers shall be allowed in buildings only for the following applications:
  1. Cylinders as specifically provided for in Section 6.20 of NFPA 58
  2. Containers of less than 125 gal (0.5 m3) water capacity for the purposes of being filled in buildings or structures complying with Chapter 10 of NFPA 58
  3. Containers on LP-Gas vehicles complying with, and parked or garaged in accordance with, Chapter 9 of NFPA 58
  4. Containers used with LP-Gas portable engine fuel systems complying with 11.15.1 of NFPA 58
  5. Containers used with LP-Gas stationary engine fuel systems complying with Section 6.26 of NFPA 58
  6. Containers used with LP-Gas-fueled industrial trucks complying with 11.13.4 of NFPA 58
  7. Containers on LP-Gas-fueled vehicles garaged in accordance with Section 11.16 of NFPA 58
  8. Cylinders awaiting use, resale, or exchange when stored in accordance with Section 69.5 [58:6.2.2]
Containers installed outside of buildings, whether of the portable type replaced on a cylinder exchange basis or permanently installed and refilled at the installation, shall be located with respect to the adjacent containers, important building, group of buildings, or line of adjoining property that can be built upon, in accordance with Table 69.3.3.1.1, Table 69.3.4.1.2, 69.3.3.1.2 through 69.3.3.1.3, 69.3.3.3, 69.3.3.4.1 through 69.3.3.4.4, and 69.3.4.4.6 through 69.3.4.4.11. [58:6.3.1]

Table 69.3.3.1.1 Separation Distances Between Containers, Important Buildings, and Line of Adjoining Property That Can Be Built Upon

Water Capacity per Container Minimum Distances
Mounded or Underground Containersa Aboveground Containers Between Containersb
gal m3 ft m ft m ft m
<125c <0.5c 10 3 0d 0d 0 0
125—250 0.5—1.0 10 3 10 3 0 0
251—500 >1.0—1.9 10 3 10 3 3 1
501—2,000 >1.9—7.6 10 3 25e 7.6 3 1
2,001—30,000 >7.6—114 50 15 50 15 5 1.5
30,001—70,000 >114—265 50 15 75 23
70,001—90,000 >265—341 50 15 100 30
90,001—120,000 >341—454 50 15 125 38 1/4 of sum of diameters of adjacent containers
120,001—200,000 >454—757 50 15 200 61
200,001—1,000,000 >757—3785 50 15 300 91
>1,000,000 >3785 50 15 400 122

aSee 69.3.3.2.1.

bSee 69.3.3.4.5.

cSee 69.3.3.4.4.

dSee 69.3.3.4.1, 69.3.3.4.2, 69.3.3.4.3, and 69.3.3.4.4.

eSee 69.3.3.1.3.

[58: Table 6.3.1.1]

When the provisions of 6.28.3 through 6.28.5 of NFPA 58 are met, the minimum distance from an ASME container to a building shall be reduced by one-half for ASME containers of 2001 gal through 30,000 gal (7.6 m3 through 114 m3) water capacity. [58:6.3.1.2]
The 25 ft (7.6 m) minimum distance from aboveground ASME containers of 501 gal through 2000 gal (1.9 m3 through 7.6 m3) water capacity to buildings, a group of buildings, or the line of adjoining property that can be built upon shall be reduced to 10 ft (3 m) for a single ASME container of 1200 gal (4.5 m3) or less water capacity where such container is at least 25 ft (7.6 m) from any other LP-Gas container of more than 125 gal (0.5 m3) water capacity. [58:6.3.1.3]
Minimum distances for underground or mounded ASME containers of 2001 gal through 30,000 gal (7.6 m3 through 114 m3) water capacity, incorporating all the provisions of Section 6.28 of NFPA 58, shall be reduced to 10 ft (3 m). [58:6.3.2.1]
Distances for all underground and mounded ASME containers shall be measured from the container surface. [58:6.3.2.2]
No part of an underground or mounded ASME container shall be less than 10 ft (3 m) from a building or line of adjoining property that can be built upon. [58:6.3.2.3]
The minimum separation distances specified in Table 69.3.3.1.1 between containers and buildings of other than wood-frame construction devoted exclusively to gas manufacturing and distribution operations shall be reduced to 10 ft (3 m). [58:6.3.3.1]
If the aggregate water capacity of a multicontainer installation is 501 gal (1.9 m3) or more and the installation is comprised of individual containers, each with a water capacity of less than 125 gal (0.5 m3), the minimum distance shall comply with Table 69.3.3.1.1 and 69.3.3.3.2.1 through 69.3.3.3.2.3. [58:6.3.3.2]
The aggregate capacity shall be used rather than the capacity per container. [58:6.3.3.2(A)]
If more than one such installation is made, each installation shall be separated from any other installation by at least 25 ft (7.6 m). [58:6.3.3.2(B)]
The minimum distances between containers shall not be applied to installations covered by 69.3.3.3.2. [58:6.3.3.2(C)]
Cylinders shall not be located and installed underneath any building unless the space is open to the atmosphere for 50 percent of its perimeter or more. [58:6.3.4.1]
ASME containers of less than 125 gal (0.5 m3) water capacity shall be located and installed so that the discharge from pressure relief devices shall not terminate in or beneath any building. [58:6.3.4.2]
The distance measured horizontally from the point of discharge of a container pressure relief valve to any building opening below the level of such discharge shall be in accordance with Table 69.3.3.4.3. [58:6.3.4.3]

Table 69.3.3.4.3 Separation Distance Between Container Pressure Relief Valve and Building Openings

Container Type Exchange or Filled on Site at the Point of Use Distance Horizontally from Relief Valve Discharge to Opening Below Discharge Discharge from Relief Valve, Vent Discharge, and Filling Connection to Exterior Source of Ignition, Openings into Direct-Vent Appliances, and Mechanical Ventilation Air Intakes
ft m ft m
Cylinder Exchange 3 0.9 5 1.5
Cylinder Filled on site at the point of use 3 0.9 10 3.0
ASME Filled on site at the point of use 5 1.5 10 3.0

[58: Table 6.3.4.3]

The distance measured in any direction from the point of discharge of a container pressure relief valve, vent of a fixed maximum liquid level gauge on a container, and the container filling connection to exterior sources of ignition, openings into direct-vent (sealed combustion system) appliances, and mechanical ventilation air intakes shall be in accordance with Table 69.3.3.4.3. [58:6.3.4.4]
Access at the ends or sides of individual underground containers having a water capacity of 125 gal (0.5 m3) or more shall be provided in multicontainer installations to facilitate working with cranes or hoists. [58:6.3.4.5]
Where storage containers having an aggregate water capacity of more than 4000 gal (15.2 m3) are located in heavily populated or congested areas, the siting provisions of 69.3.3.1.1 and Table 69.3.3.1.1 shall be permitted to be modified as indicated by the fire safety analysis described in 6.27.3 of NFPA 58. [58:6.4.1.1]
Aboveground multicontainer installations comprised of ASME containers having an individual water capacity of 12,000 gal (45 m3) or more and installed for use in a single location shall be limited to the number of containers in one group, with each group separated from the next group in accordance with the degree of fire protection provided in Table 69.3.4.1.2. [58:6.4.1.2]

Table 69.3.4.1.2 Maximum Number of Containers in a Group and Their Separation Distances

Fire Protection Provided by Maximum Number of Containers in One Group Minimum Separation Between Groups
ft m
Hose streams only (see 6.4.1.2 and 6.27.3.1 of NFPA 58) 6 50 15
Fixed monitor nozzles per 6.27.6.3 of NFPA 58 6 25 7.6
Fixed water spray per 6.27.6.1 of NFPA 58 9 25 7.6
Insulation per 6.27.5.1 of NFPA 58 9 25 7.6

[58: Table 6.4.1.2]

Where the provisions of 6.28.3 and 6.28.4 of NFPA 58 are met, the minimum separation distance between groups of ASME containers protected by hose stream only shall be one-half the distances required in Table 69.3.4.1.2. [58:6.4.1.3]
Underground or mounded ASME containers shall be located in accordance with 69.3.4.2.2 and 69.3.4.2.3. [58:6.4.2.1]
Underground or mounded containers shall be located outside of any buildings. [58:6.4.2.2]
Buildings shall not be constructed over any underground or mounded containers. [58:6.4.2.3]
The sides of adjacent containers shall be separated in accordance with Table 69.3.3.1.1 but shall not be separated by less than 3 ft (1 m). [58:6.4.3.1]
Where containers are installed parallel with ends in line, the number of containers in one group shall not be limited. [58:6.4.3.2]
Where more than one row of containers is installed, the adjacent ends of the containers in each row shall be separated by not less than 10 ft (3 m). [58:6.4.3.3]
Additional container installation requirements shall comply with 69.3.4.4.2 through 69.3.4.4.14 and 69.3.4.5. [58:6.4.4.1]
Containers shall not be stacked one above the other. [58:6.4.4.2]
Combustible materials shall not accumulate or be stored within 10 ft (3 m) of a container. [58:6.4.4.3]
The area under containers shall be graded or shall have dikes or curbs installed so that the flow or accumulation of flammable liquids with flash points below 200°F (93.4°C) is prevented. [58:6.4.4.4]
LP-Gas containers shall be located at least 10 ft (3 m) from the centerline of the wall of diked areas containing flammable or combustible liquids. [58:6.4.4.5]
The minimum horizontal separation between aboveground LP-Gas containers and aboveground tanks containing liquids having flash points below 200°F (93.4°C) shall be 20 ft (6 m). [58:6.4.4.6]
The requirements of 69.3.4.4.6 shall not apply where LP-Gas containers of 125 gal (0.5 m3) or less water capacity are installed adjacent to fuel oil supply tanks of 660 gal (2.5 m3) or less capacity. [58:6.4.4.7]
No horizontal separation shall be required between aboveground LP-Gas containers and underground tanks containing flammable or combustible liquids installed in accordance with NFPA 30. [58:6.4.4.8]
The minimum separation between LP-Gas containers and oxygen or gaseous hydrogen containers shall be in accordance with NFPA 55, Compressed Gases and Cryogenic Fluids Code. [58:6.4.4.9]
Where protective structures having a minimum fire resistance rating of 2 hours interrupt the line of sight between uninsulated portions of the oxygen or hydrogen containers and the LP-Gas containers, no minimum distance shall apply. [58:6.4.4.10]
The minimum separation between LP-Gas containers and liquefied hydrogen containers shall be in accordance with NFPA 55, Compressed Gases and Cryogenic Fluids Code. [58:6.4.4.11]
Where LP-Gas cylinders are to be stored or used in the same area with other compressed gases, the cylinders shall be marked to identify their content in accordance with ANSI/CGA C-7, Guide to the Preparation of Precautionary Labeling and Marking of Compressed Gas Containers. [58:6.4.4.12]
An aboveground LP-Gas container and any of its parts shall not be located within 6 ft (1.8 m) of a vertical plane beneath overhead electric power lines that are over 600 volts, nominal. [58:6.4.4.13]
Refrigerated LP-Gas containers shall be located within an impoundment in accordance with Section 12.5 of NFPA 58. [58: 6.4.4.14]
Structures such as fire walls, fences, earth or concrete barriers, and other similar structures shall not be permitted around or over installed nonrefrigerated containers unless specifically allowed. [58:6.4.5.1]
Structures partially enclosing containers shall be permitted if designed in accordance with a sound fire protection analysis. [58:6.4.5.2]
Structures used to prevent flammable or combustible liquid accumulation or flow shall be permitted in accordance with 69.3.4.4.4. [58:6.4.5.3]
Structures between LP-Gas containers and gaseous hydrogen containers shall be permitted in accordance with 69.3.4.4.10. [58:6.4.5.4]
Structures such as fences shall be permitted in accordance with 6.19.4 of NFPA 58. [58:6.4.5.5]
Liquid shall be transferred into containers, including containers mounted on vehicles, only outdoors or in structures specially designed for such purpose. [58:6.5.1.1]
The transfer of liquid into containers mounted on vehicles shall not take place within a building but shall be permitted to take place under a weather shelter or canopy. (See 6.25.3.3 of NFPA 58.) [58:6.5.1.2]
Structures housing transfer operations or converted for such use after December 31, 1972, shall comply with Chapter 10 of NFPA 58. [58:6.5.1.3]
The transfer of liquid into containers on the roofs of structures shall be permitted, provided that the installation conforms to the requirements specified in 6.6.7 and 6.20.11 of NFPA 58. [58:6.5.1.4]
The transfer hose shall not be routed in or through any building except those specified in 69.3.5.1.3. [58:6.5.1.5]
Filling of containers located outdoors in stationary installations in accordance with 69.3.3 shall be permitted to be filled at that location. [58:6.5.1.6]
If the point of transfer of containers located outdoors in stationary installations is not located at the container, it shall be located in accordance with Table 69.3.5.2.1. [58:6.5.2.1]

Table 69.3.5.2.1 Distance Between Point of Transfer and Exposures

Part Exposure Minimum Horizontal Distance
ft m
A Buildings,a mobile homes, recreational vehicles, and modular homes with at least 1-hour fire-rated wallsb 10c 3.1
B Buildingsa with other than at least 1-hour fire-rated wallsb 25c 7.6c
C Building wall openings or pits at or below the level of the point of transfer 25c 7.6c
D Line of adjoining property that can be built upon 25c 7.6c
E Outdoor places of public assembly, including schoolyards, athletic fields, and playgrounds 50c 15c
F Public ways, including public streets, highways, thoroughfares, and sidewalks
(1) From points of transfer in LP-Gas dispensing stations and at vehicle fuel dispensers 10 3.1
(2) From other points of transfer 25c 7.6c
G Drivewaysd 5 1.5
H Mainline railroad track centerlines 25 7.6
I Containerse other than those being filled 10 3.1
J Flammable and Class II combustible liquidf dispensers and the fill connections of containers 10c 3.1c
K Flammable and Class II combustible liquid aboveground containers, and filling connections of underground containers 20 6.1

aFor the purpose of the table, buildings also include structures such as tents and box trailers at construction sites.

bSee ASTM E 119, Standard Test Methods for Fire Tests of Building Construction and Materials, or ANSI/UL 263, Standard for Fire Tests for Building Construction and Materials.

cSee 69.3.5.3.4.

dNot applicable to driveways and points of transfer at vehicle fuel dispensers.

eNot applicable to filling connections at the storage container or to dispensing vehicle fuel dispenser units of 4000 gal (15.2 m3) water capacity or less when used for filling containers not mounted on vehicles.

fNFPA 30 defines these as follows: Flammable liquids include those having a flash point below 100°F (37.8°C) and having a vapor pressure not exceeding 40 psia (276 kPa) at 100°F (37.8°C). Class II combustible liquids include those having a flash point at or above 100°F (37.8°C) and below 140°F(60°C). [58: Table 6.5.2.1]

Containers not located in stationary installations shall be filled at a location determined by the point of transfer in accordance with Table 69.3.5.2.1. [58:6.5.2.2]
If the point of transfer is a component of a system covered by Section 6.24 or Chapter 11 of NFPA 58, the requirements of parts A, B, and C of Table 69.3.5.2.1 shall not apply to the structure containing the point of transfer. [58:6.5.3.1]
If LP-Gas is vented to the atmosphere under the conditions stipulated in 7.3.1(5) of NFPA 58, the distances in Table 69.3.5.2.1 shall be doubled. [58:6.5.3.2]
If the point of transfer is housed in a structure complying with Chapter 10 of NFPA 58, and the common walls comply with 10.2.1 of NFPA 58, separation distances in Table 69.3.5.2.1 shall not be required where the common walls comply with 10.3.1.3 of NFPA 58. [58:6.5.3.3]
The distances in Table 69.3.5.2.1, parts B, C, D, E, F(2), and J, shall be reduced by one-half where the system incorporates the provisions of low emission transfer as provided in 6.28.5 of NFPA 58. [58:6.5.3.4]
Containers shall be positioned so that the pressure relief valve is in direct communication with the vapor space of the container. [58:6.6.1.1]
LP-Gas containers or systems of which they are a part that are installed within 10 ft (3m) of public vehicular thoroughfares shall be provided with a means of vehicular barrier protection. [58:6.6.1.2]
Field welding on containers shall be limited to nonpressure parts such as saddle plates, wear plates, or brackets installed by the container manufacturer. [58:6.6.1.3]
Aboveground containers shall be painted. [58:6.6.1.4]
Containers shall be installed so that all container operating appurtenances are accessible. [58:6.6.1.5]
Where necessary to prevent flotation due to possible high flood waters around aboveground or mounded containers, or high water table for those underground and partially underground, containers shall be securely anchored. [58:6.6.1.6]
Cylinders shall be installed only aboveground and shall be set upon a firm foundation or otherwise be firmly secured. (See 69.3.6.2.2.) [58:6.6.2.1]
The cylinder shall not be in contact with the soil. [58:6.6.2.2]
Flexibility shall be provided in the connecting piping. (See 69.3.6.2.4.) [58:6.6.2.3]
Where flexible connectors are used, they shall comply with 6.9.6 of NFPA 58. [58:6.6.2.4]
The requirements of 69.3.7.2 through 69.3.7.5 shall be required for internal valves in liquid service that are installed in containers of over 4000 gal (15.2 m3) water capacity by July 1, 2003. [58:6.11.1]
Internal valves shall be installed in accordance with 5.7.4.2 and Table 5.7.4.2 of NFPA 58 on containers of over 4000 gal (15.2 m3) water capacity. [58:6.11.2]
Automatic shutdown of internal valves in liquid service shall be provided using thermal (fire) actuation. [58:6.11.3.1]
The thermal sensing element of the internal valve shall be within 5 ft (1.5 m) of the internal valve. [58:6.11.3.2]
At least one remote shutdown station for internal valves in liquid service shall be installed not less than 25 ft (7.6 m) or more than 100 ft (30 m) from the liquid transfer point. [58:6.11.4.1]
This requirement shall be retroactive to all internal valves required by NFPA 58. [58:6.11.4.2]
Emergency remote shutdown stations shall be identified by a sign, visible from the point of transfer, incorporating the words "Propane — Container Liquid Valve Emergency Shutoff" in block letters of not less than 2 in. (51 mm) in height on a background of contrasting colors to the letters. [58:6.11.5]
On new installations and on existing installations, stationary container storage systems with an aggregate water capacity of more than 4000 gal (15.2 m3) utilizing a liquid transfer line that is 11/2 in. (39 mm) or larger, and a pressure equalizing vapor line that is 11/2 in. (32 mm) or larger, shall be equipped with emergency shutoff valves. [58:6.12.1]
An emergency shutoff valve shall be installed in the transfer lines of the fixed piping transfer system within 20 ft (6 m) of lineal pipe from the nearest end of the hose or swivel-type piping connections. [58:6.12.2]
When the flow is only into the container, a backflow check valve shall be permitted to be used in lieu of an emergency shutoff valve if installed in the piping transfer system downstream of the hose or swivel-type piping connections. [58:6.12.3]
The backflow check valve shall have a metal-to-metal seat or a primary resilient seat with metal back-up, not hinged with combustible material, and shall be designed for this specific application. [58:6.12.4]
Where there are two or more liquid or vapor lines with hoses or swivel-type piping connected of the sizes designated, an emergency shutoff valve or a backflow check valve, where allowed, shall be installed in each leg of the piping. [58:6.12.5]
Emergency shutoff valves shall be installed so that the temperature-sensitive element in the valve, or a supplemental temperature-sensitive element that operates at a maximum temperature of 250°F (121°C) that is connected to actuate the valve, is not more than 5 ft (1.5 m) from the nearest end of the hose or swivel-type piping connected to the line in which the valve is installed. [58:6.12.6]
Temperature-sensitive elements of emergency shutoff valves shall not be painted, nor shall they have any ornamental finishes applied after manufacture. [58:6.12.7]
The emergency shutoff valves or backflow check valves shall be installed in the fixed piping so that any break resulting from a pull will occur on the hose or swivel-type piping side of the connection while retaining intact the valves and piping on the plant side of the connection. [58:6.12.8]
Where emergency shutoff valves are required to be installed in accordance with 69.3.8.2, a means shall be incorporated to actuate the emergency shutoff valves in the event of a break of the fixed piping resulting from a pull on the hose. [58:6.12.9]
Emergency shutoff valves required by NFPA 58 shall be tested annually for the functions required by 5.12.2.3(2) and (3) of NFPA 58, and the results of the test shall be documented. [58:6.12.10]
Backflow check valves installed in lieu of emergency shutoff valves shall be checked annually for proper operation, and the results of the test shall be documented. [58:6.12.11]
All new and existing emergency shutoff valves shall comply with 69.3.8.12.1 through 69.3.8.12.3. [58:6.12.12]
Each emergency shutoff valve shall have at least one clearly identified and easily accessible manually operated remote emergency shutoff device. [58:6.12.12.1]
The shutoff device shall be located not less than 25 ft (7.6 m) or more than 100 ft (30 m) in the path of egress from the emergency shutoff valve. [58:6.12.12.2]
Where an emergency shutoff valve is used in lieu of an internal valve in compliance with 5.7.4.2(D)(2) of NFPA 58, the remote shutoff device shall be installed in accordance with 69.3.7.4 and 69.3.7.5. [58:6.12.12.3]
Emergency shutoff valves for railroad tank car transfer systems shall be in accordance with 6.19.2.6, 6.28.4, 7.2.3.7, and 7.2.3.8 of NFPA 58. [58:6.12.13]
In areas where the ground snow load is equal to or exceeds 175 psf (855 kg/m2), piping, regulators, meters, and other equipment installed in the piping system shall be protected from the forces of accumulated snow. [58:6.16.1]
Subsection 69.3.10 shall apply to the installation of the following LP-Gas systems in buildings or structures:
  1. Cylinders inside of buildings or on the roofs or exterior balconies of buildings
  2. Systems in which the liquid is piped from outside containers into buildings or onto the roof [58:6.20.1.1]
The phrase cylinders in use shall mean connected for use. [58:6.20.1.2]
The use of cylinders indoors shall be only for the purposes specified in 6.20.4 through 6.20.10 of NFPA 58. [58:6.20.1.2(A)]
The use of cylinders indoors shall be limited to those conditions where operational requirements make the indoor use of cylinders necessary and location outside is impractical. [58:6.20.1.2(B)]
The use of cylinders on roofs shall be limited to those conditions where operational requirements make the use of cylinders necessary and location other than on roofs of buildings or structures is impractical. [58:6.20.1.2(C)]
Liquid LP-Gas shall be piped into buildings or structures only for the purposes specified in 6.9.1.1(D) of NFPA 58. [58:6.20.1.2(D)]
Storage of cylinders awaiting use shall be in accordance with Chapter 8 of NFPA 58. [58:6.20.1.3]
Transportation of cylinders within a building shall be in accordance with 6.20.3.6 of NFPA 58. [58:6.20.1.4]
The following provisions shall be required in addition to those specified in Sections 6.2 and 6.3 of NFPA 58:
  1. Liquid transfer systems shall be in accordance with Chapter 7 of NFPA 58.
  2. Engine fuel systems used inside buildings shall be in accordance with Chapter 11 of NFPA 58.
  3. LP-Gas transport or cargo tank vehicles stored, serviced, or repaired in buildings shall be in accordance with Chapter 9 of NFPA 58. [58:6.20.1.5]
Cylinders shall be in accordance with the following:
  1. Cylinders shall not exceed 245 lb (111 kg) water capacity [nominal 100 lb (45 kg) propane capacity] each.
  2. Cylinders shall comply with other applicable provisions of Section 5.2 of NFPA 58, and they shall be equipped as provided in Section 5.7 of NFPA 58.
  3. Cylinders shall be marked in accordance with 5.2.8.1 and 5.2.8.2 of NFPA 58.
  4. Cylinders with propane capacities greater than 2 lb (0.9 kg) shall be equipped as provided in Table 5.7.4.1(D) of NFPA 58, and an excess-flow valve shall be provided for vapor service when used indoors.
  5. Cylinder valves shall be protected in accordance with 5.2.6.1 of NFPA 58.
  6. Cylinders having water capacities greater than 2.7 lb (1.2 kg) and connected for use shall stand on a firm and substantially level surface.
  7. Cylinders shall be secured in an upright position if necessary.
  8. Cylinders and the valve-protecting devices used with them shall be oriented to minimize the possibility of impingement of the pressure relief device discharge on the cylinder and adjacent cylinders. [58:6.20.2.1]
Manifolds and fittings connecting cylinders to pressure regulator inlets shall be designed for at least 250 psig (1.7 MPag) service pressure. [58:6.20.2.2]
Piping shall comply with Section 5.9 of NFPA 58 and shall have a pressure rating of 250 psig (1.7 MPag). [58:6.20.2.3]
Liquid piping and vapor piping at pressures above 125 psig (0.9 MPag) shall be installed in accordance with 6.9.3 of NFPA 58. [58:6.20.2.4]
Hose, hose connections, and flexible connectors shall comply with the following:
  1. Hose used at pressures above 5 psig (34 kPag) shall be designed for a pressure of at least 350 psig (2.4 MPag).
  2. Hose used at a pressure of 5 psig (34 kPag) or less and used in agricultural buildings not normally occupied by the public shall be designed for the operating pressure of the hose.
  3. Hose shall comply with 5.9.6 of NFPA 58.
  4. Hose shall be installed in accordance with 6.21.3 of NFPA 58.
  5. Hose shall be as short as practical, without kinking or straining the hose or causing it to be close enough to a burner to be damaged by heat.
  6. Hoses greater than 10 ft (3 m) in length shall be protected from damage. [58:6.20.2.5]
Portable heaters, including salamanders, shall comply with the following:
  1. Portable heaters shall be equipped with an approved automatic device to shut off the flow of gas to the main burner and to the pilot, if used, in the event of flame extinguishment or combustion failure.
  2. Portable heaters shall be self-supporting unless designed for cylinder mounting.
  3. Portable heaters shall not be installed utilizing cylinder valves, connectors, regulators, manifolds, piping, or tubing as structural supports.
  4. Portable heaters having an input of more than 50,000 Btu/hr (53 MJ/hr) shall be equipped with either a pilot that must be lighted and proved before the main burner can be turned on or an approved electric ignition system. [58:6.20.2.6]
The provisions of 69.3.10.2.6 shall not be applicable to the following:
  1. Tar kettle burners, hand torches, or melting pots
  2. Portable heaters with less than 7500 Btu/hr (8 MJ/hr) input if used with cylinders having a maximum water capacity of 2.7 lb (1.2 kg) and filled with not more than 16.8 oz (0.522 kg) of LP-Gas [58:6.20.2.7]
Where cylinders are used and transported in buildings or structures under construction or undergoing major renovation and such buildings are not occupied by the public, the requirements of 69.3.10.3.2 through 69.3.10.3.10 shall apply. [58:6.20.4.1]
The use and transportation of cylinders in the unoccupied portions of buildings or structures under construction or undergoing major renovation that are partially occupied by the public shall be approved by the AHJ. [58:6.20.4.2]
Cylinders, equipment, piping, and appliances shall comply with 69.3.10.2. [58:6.20.4.3]
Heaters used for temporary heating shall be located at least 6 ft (1.8 m) from any cylinder. (See 69.3.10.3.5 for an exception to this requirement.) [58:6.20.4.4]
Integral heater-cylinder units specifically designed for the attachment of the heater to the cylinder, or to a supporting standard attached to the cylinder, and designed and installed to prevent direct or radiant heat application to the cylinder shall be exempt from the spacing requirement of 69.3.10.3.4. [58:6.20.4.5]
Blower-type and radiant-type units shall not be directed toward any cylinder within 20 ft (6.1 m). [58:6.20.4.6]
If two or more heater-cylinder units of either the integral or nonintegral type are located in an unpartitioned area on the same floor, the cylinder(s) of each such unit shall be separated from the cylinder(s) of any other such unit by at least 20 ft (6.1 m). [58:6.20.4.7]
If heaters are connected to cylinders manifolded together for use in an unpartitioned area on the same floor, the total water capacity of cylinders manifolded together serving any one heater shall not be greater than 735 lb (333 kg) [nominal 300 lb (136 kg) propane capacity]. If there is more than one such manifold, it shall be separated from any other by at least 20 ft (6.1 m). [58:6.20.4.8]
Where cylinders are manifolded together for connection to a heater(s) on another floor, the following shall apply.
  1. Heaters shall not be installed on the same floors with manifolded cylinders.
  2. The total water capacity of the cylinders connected to any one manifold shall not be greater than 2450 lb (1111 kg) [nominal 1000 lb (454 kg) propane capacity]
  3. Manifolds of more than 735 lb (333 kg) water capacity [nominal 300 lb (136 kg) propane capacity], if located in the same unpartitioned area, shall be separated from each other by at least 50 ft (15 m). [58:6.20.4.9]
Where compliance with the provisions of 69.3.10.3.6 through 69.3.10.3.9 is impractical, alternate installation provisions shall be allowed with the approval of the AHJ. [58:6.20.4.10]
Cylinders used and transported for repair or minor renovation in buildings frequented by the public during the hours the public normally occupies the building shall comply with the following:
  1. The maximum water capacity of individual cylinders shall be 50 lb (23 kg) [nominal 20 lb (9.1 kg) propane capacity], and the number of cylinders in the building shall not exceed the number of workers assigned to the use of the propane.
  2. Cylinders having a water capacity greater than 2.7 lb (1.2 kg) shall not be left unattended. [58:6.20.5.1]
During the hours the building is not open to the public, cylinders used and transported within the building for repair or minor renovation and with a water capacity greater than 2.7 lb (1.2 kg) shall not be left unattended. [58:6.20.5.2]
Cylinders used in buildings housing industrial occupancies for processing, research, or experimental purposes shall comply with 69.3.10.5.1.1 and 69.3.10.5.1.2. [58:6.20.6.1]
If cylinders are manifolded together, the total water capacity of the connected cylinders shall be not more than 735 lb (333 kg) [nominal 300 lb (136 kg) propane capacity]. If there is more than one such manifold in a room, it shall be separated from any other by at least 20 ft (6.1 m). [58:6.20.6.1(A)]
The amount of LP-Gas in cylinders for research and experimental use in the building shall be limited to the smallest practical quantity. [58:6.20.6.1(B)]
The use of cylinders to supply fuel for temporary heating in buildings housing industrial occupancies with essentially noncombustible contents shall comply with the requirements in 69.3.10.3 for cylinders in buildings under construction. [58:6.20.6.2]
The use of fuel cylinders for temporary heating shall be permitted only where portable equipment for space heating is essential and a permanent heating installation is not practical. [58:6.20.6.3]
The use of cylinders in classrooms shall be prohibited unless they are used temporarily for classroom demonstrations in accordance with 69.3.10.8.1. [58:6.20.7.1]
Where cylinders are used in buildings housing educational and institutional laboratory occupancies for research and experimental purposes, the following shall apply:
  1. The maximum water capacity of individual cylinders used shall be 50 lb (23 kg) [nominal 20 lb (9.1 kg) propane capacity] if used in educational occupancies and 12 lb (5.4 kg) [nominal 5 lb (2 kg) propane capacity] if used in institutional occupancies.
  2. If more than one such cylinder is located in the same room, the cylinders shall be separated by at least 20 ft (6.1 m).
  3. Cylinders not connected for use shall be stored in accordance with Chapter 8 of NFPA 58.
  4. Cylinders shall not be stored in a laboratory room. [58:6.20.7.2]
Cylinders shall not be used in buildings for temporary emergency heating purposes except when all of the following conditions are met:
  1. The permanent heating system is temporarily out of service.
  2. Heat is necessary to prevent damage to the buildings or contents.
  3. The cylinders and heaters comply with, and are used and transported in accordance with, 69.3.10.2 and 69.3.10.3.
  4. The temporary heating equipment is not left unattended.
  5. Air for combustion and ventilation is provided in accordance with NFPA 54, National Fuel Gas Code. [58:6.20.8.1]
When a public emergency has been declared and gas, fuel, or electrical service has been interrupted, portable listed LP-Gas commercial food service appliances meeting the requirements of 69.3.10.8.4 shall be permitted to be temporarily used inside affected buildings. [58:6.20.8.2]
The portable appliances used shall be discontinued and removed from the building at the time the permanently installed appliances are placed back in operation. [58:6.20.8.3]
Cylinders used temporarily inside buildings for public exhibitions or demonstrations, including use in classroom demonstrations, shall be in accordance with the following:
  1. The maximum water capacity of a cylinder shall be 12 lb (5.4 kg) [nominal 5 lb (2 kg) propane capacity],
  2. If more than one such cylinder is located in a room, the cylinders shall be separated by at least 20 ft (6.1 m). [58:6.20.9.1]
Cylinders used temporarily in buildings for training purposes related to the installation and use of LP-Gas systems shall be in accordance with the following:
  1. The maximum water capacity of individual cylinders shall be 245 lb (111 kg) [nominal 100 lb (45 kg) propane capacity], but not more than 20 lb (9.1 kg) of propane shall be placed in a single cylinder.
  2. If more than one such cylinder is located in the same room, the cylinders shall be separated by at least 20 ft (6.1 m).
  3. The training location shall be acceptable to the AHJ.
  4. Cylinders shall be promptly removed from the building when the training class has terminated. [58:6.20.9.2]
Cylinders used in buildings as part of approved self-contained torch assemblies or similar appliances shall be in accordance with the following:
  1. Cylinders used in buildings shall comply with ANSI/UL 147A, Standard for Nonrefillable (Disposable) Type Fuel Gas Cylinder Assemblies.
  2. Cylinders shall have a maximum water capacity of 2.7 lb (1.2 kg). [58:6.20.9.3]
Cylinders used with commercial food service appliances shall be used inside restaurants and in attended commercial food catering operations in accordance with the following:
  1. Cylinders and appliances shall be listed.
  2. Commercial food service appliances shall not have more than two 10 oz (296 ml) nonrefillable butane gas cylinders, each having a maximum capacity of 1.08 lb (0.490 kg).
  3. Cylinders shall comply with ANSI/UL 147B, Standard for Nonrefillable (Disposable) Type Metal Container Assemblies for Butane.
  4. Cylinders shall be connected directly to the appliance and shall not be manifolded.
  5. Cylinders shall be an integral part of the listed, approved, commercial food service device and shall be connected without the use of a rubber hose.
  6. Storage of cylinders shall be in accordance with 8.3.1 of NFPA 58. [58:6.20.9.4]
Where cylinders are installed permanently on roofs of buildings, the buildings shall be of fire-resistant construction or noncombustible construction having essentially noncombustible contents, or of other construction or contents that are protected with automatic sprinklers. [58:6.20.11.1]
The total water capacity of cylinders connected to any one manifold shall be not greater than 980 lb (445 kg) [nominal 400 lb (181 kg) propane capacity]. If more than one manifold is located on the roof, it shall be separated from any other by at least 50 ft (15 m). [58:6.20.11.1(A)]
Cylinders shall be located in areas where there is free air circulation, at least 10 ft (3 m) from building openings (such as windows and doors), and at least 20 ft (6.1 m) from air intakes of air-conditioning and ventilating systems. [58:6.20.11.1(B)]
Cylinders shall not be located on roofs that are entirely enclosed by parapets more than 18 in. (460 mm) high unless the parapets are breached with low-level ventilation openings not more than 20 ft (6.1 m) apart, or unless all openings communicating with the interior of the building are at or above the top of the parapets. [58:6.20.11.1(C)]
Piping shall be in accordance with 69.3.10.2.3 through 69.3.10.2.5. [58:6.20.11.1(D)]
Hose shall not be used for connection to cylinders. [58:6.20.11.1(E)]
The fire department shall be advised of each installation. [58:6.20.11.1(F)]
Cylinders having water capacities greater than 2.7 lb (1 kg) [nominal 1 lb (0.5 kg) LP-Gas capacity] shall not be located on decks or balconies of dwellings of two or more living units above the first floor unless they are served by exterior stairways. [58:6.20.11.2]
Patio heaters utilizing an integral LP-Gas container greater than 1.08 lb (0.49 kg) propane capacity shall comply with 69.3.11.1.2 and 69.3.11.1.3. [58:6.21.2.1]
Patio heaters shall be listed and used in accordance with their listing and the manufacturer's instructions. [58:6.21.2.2]
Patio heaters shall not be located within 5 ft (1.5 m) of exits from an assembly occupancy. [58:6.21.2.3]
The requirements of 69.3.11 shall apply to hoses used on the low-pressure side of regulators to connect portable appliances. [58:6.21.3.1]
Where used inside buildings, the following shall apply:
  1. The hose shall be the minimum practical length and shall be in accordance with 69.3.10.2.5.
  2. The hose shall not extend from one room to another or pass through any partitions, walls, ceilings, or floors except as provided by 69.3.10.3.9.
  3. The hose shall not be concealed from view or used in concealed locations. [58:6.21.3.2]
Where installed outside of buildings, the hose length shall be permitted to exceed 10 ft (3.3 m) but shall be as short as practical. [58:6.21.3.3]
Hose shall be securely connected to the appliance. [58:6.21.3.4]
The use of rubber slip ends shall not be permitted. [58:6.21.3.5]
A shutoff valve shall be provided in the piping immediately upstream of the inlet connection of the hose. [58:6.21.3.6]
Where more than one such appliance shutoff is located near another, the valves shall be marked to indicate which appliance is connected to each valve. [58:6.21.3.7]
Hose shall be protected against physical damage. [58:6.21.3.8]
Subsection 69.3.12 shall apply to the following:
  1. Nonengine fuel systems on all vehicles
  2. Installations served by exchangeable (removable) cylinder systems and by permanently mounted containers [58:6.24.1]
Subsection 69.3.12 shall not apply to the following:
  1. Systems installed on mobile homes
  2. Systems installed on recreational vehicles
  3. Cargo tank vehicles, cargo tank vehicles (trailers and semitrailers), and similar units used to transport LP-Gas as cargo, which are covered by Chapter 9 of NFPA 58
  4. LP-Gas engine fuel systems on the vehicles, which are covered by Chapter 11 of NFPA 58 [58:6.24.2]
Containers shall comply with 69.3.12.3.1.1 through 69.3.12.3.1.4. [58:6.24.3.1]
ASME mobile containers shall in accordance with one of the following:
  1. A MAWP of 312 psig (2.2 MPag) or higher where installed in enclosed spaces of vehicles
  2. A MAWP of 312 psig (2.2 MPag) or higher where installed on passenger vehicles
  3. A MAWP of 250 psig (1.7 MPag) or higher for containers where installed on the exterior of nonpassenger vehicles [58:6.24.3.1(A)]
LP-Gas fuel containers used on passenger-carrying vehicles shall not exceed 200 gal (0.8 m3) aggregate water capacity. [58:6.24.3.1(B)]
The capacity of individual LP-Gas containers on highway vehicles shall be in accordance with Table 69.3.12.3.1.3. [58:6.24.3.1(C)]

Table 69.3.12.3.1.3 Maximum Capacities of Individual LP-Gas Containers Installed on LP-Gas Highway Vehicles

Vehicle Maximum Container Water Capacity
gal m3
Passenger vehicle 200 0.8
Nonpassenger vehicle 300 1.1
Road surfacing vehicle 1000 3.8
Cargo tank vehicle Not limited by NFPA 58

[58:Table 6.24.3.1(C)]

Containers designed for stationary service only and not in compliance with the container appurtenance protection requirements of 5.2.6 of NFPA 58 shall not be used. [58:6.24.3.1(D)]
ASME containers and cylinders utilized for the purposes covered by 69.3.12 shall not be installed, transported, or stored (even temporarily) inside any vehicle covered by 69.3.12, except for ASME containers installed in accordance with 69.3.12.3.4.9, Chapter 9 of NFPA 58, or DOT regulations. [58:6.24.3.2]
The LP-Gas supply system, including the containers, shall be installed either on the outside of the vehicle or in a recess or cabinet vaportight to the inside of the vehicle but accessible from and vented to the outside, with the vents located near the top and bottom of the enclosure and 3 ft (1 m) horizontally away from any opening into the vehicle below the level of the vents. [58:6.24.3.3]
Containers shall be mounted securely on the vehicle or within the enclosing recess or cabinet. [58:6.24.3.4]
Containers shall be installed with road clearance in accordance with 11.8.3 of NFPA 58. [58:6.24.3.4(A)]
Fuel containers shall be mounted to prevent jarring loose and slipping or rotating, and the fastenings shall be designed and constructed to withstand, without permanent visible deformation, static loading in any direction equal to four times the weight of the container filled with fuel. [58:6.24.3.4(B)]
Where containers are mounted within a vehicle housing, the securing of the housing to the vehicle shall comply with this provision. Any removable portions of the housing or cabinet shall be secured while in transit. [58:6.24.3.4(C)]
Field welding on containers shall be limited to attachments to nonpressure parts such as saddle plates, wear plates, or brackets applied by the container manufacturer. [58:6.24.3.4(D)]
All container valves, appurtenances, and connections shall be protected to prevent damage from accidental contacts with stationary objects; from loose objects, stones, mud, or ice thrown up from the ground or floor; and from damage due to overturn or similar vehicular accident. [58:6.24.3.4(E)]
Permanently mounted ASME containers shall be located on the vehicle to provide the protection specified in 69.3.12.3.4.5. [58:6.24.3.4(F)]
Cylinders shall have permanent protection for cylinder valves and connections. [58:6.24.3.4(G)]
Where cylinders are located on the outside of a vehicle, weather protection shall be provided. [58:6.24.3.4(H)]
Containers mounted on the interior of passenger-carrying vehicles shall be installed in compliance with Section 11.9 of NFPA 58. Pressure relief valve installations for such containers shall comply with 11.8.5 of NFPA 58. [58:6.24.3.4(I)]
Cylinders installed on portable tar kettles alongside the kettle, on the vehicle frame, or on road surface heating equipment shall be protected from radiant or convected heat from open flame or other burners by the use of a heat shield or by the location of the cylinder(s) on the vehicle. In addition, the following shall apply:
  1. Cylinder valves shall be closed when burners are not in use.
  2. Cylinders shall not be refilled while burners are in use as provided in 7.2.3.2(B) of NFPA 58. [58:6.24.3.5]
Container appurtenances shall be installed in accordance with the following:
  1. Pressure relief valve installation on ASME containers installed in the interior of vehicles complying with Section 11.9 of NFPA 58 shall comply with 11.8.5 of NFPA 58.
  2. Pressure relief valve installations on ASME containers installed on the outside of vehicles shall comply with 11.8.5 of NFPA 58 and 69.3.12.3.3.
  3. Main shutoff valves on containers for liquid and vapor shall be readily accessible.
  4. Cylinders shall be designed to be filled in either the vertical or horizontal position, or if they are the universal type, they are permitted to be filled in either position.
  5. All container inlets, outlets, or valves installed in container inlets or outlets, except pressure relief devices and gauging devices, shall be labeled to designate whether they communicate with the vapor or liquid space.
  6. Containers from which only vapor is to be withdrawn shall be installed and equipped with connections to minimize the possibility of the accidental withdrawal of liquid. [58:6.24.4.1]
Regulators shall be installed in accordance with 6.8.2 of NFPA 58 and 69.3.12.4.2.1 through 69.3.12.4.2.5. [58:6.24.4.2]
Regulators shall be installed with the pressure relief vent opening pointing vertically downward to allow for drainage of moisture collected on the diaphragm of the regulator. [58:6.24.4.2(A)]
Regulators not installed in compartments shall be equipped with a durable cover designed to protect the regulator vent opening from sleet, snow, freezing rain, ice, mud, and wheel spray. [58:6.24.4.2(B)]
If vehicle-mounted regulators are installed at or below the floor level, they shall be installed in a compartment that provides protection against the weather and wheel spray. [58:6.24.4.2(C)]
Regulator compartments shall comply with the following:
  1. The compartment shall be of sufficient size to allow tool operation for connection to and replacement of the regulator(s).
  2. The compartment shall be vaportight to the interior of the vehicle.
  3. The compartment shall have a 1 in.2 (650 mm2) minimum vent opening to the exterior located within 1 in. (25 mm) of the bottom of the compartment.
  4. The compartment shall not contain flame or spark-producing equipment. [58:6.24.4.2(D)]
A regulator vent outlet shall be at least 2 in. (51 mm) above the compartment vent opening. [58:6.24.4.2(E)]
Piping shall be installed in accordance with 6.9.3 of NFPA 58 and 69.3.12.5.1.1 through 69.3.12.5.1.13. [58:6.24.5.1]
Steel tubing shall have a minimum wall thickness of 0.049 in. (1.2 mm). [58:6.24.5.1(A)]
A flexible connector shall be installed between the regulator outlet and the fixed piping system to protect against expansion, contraction, jarring, and vibration strains. [58:6.24.5.1(B)]
Flexibility shall be provided in the piping between a cylinder and the gas piping system or regulator. [58:6.24.5.1(C)]
Flexible connectors shall be installed in accordance with 6.9.6 of NFPA 58. [58:6.24.5.1(D)]
Flexible connectors longer than the length allowed in the Code, or fuel lines that incorporate hose, shall be used only where approved. [58:6.24.5.1(E)]
The piping system shall be designed, installed, supported, and secured to minimize the possibility of damage due to vibration, strains, or wear and to preclude any loosening while in transit. [58:6.24.5.1(F)]
Piping shall be installed in a protected location. [58:6.24.5.1(G)]
Where piping is installed outside the vehicle, it shall be installed as follows:
  1. Piping shall be under the vehicle and below any insulation or false bottom.
  2. Fastening or other protection shall be installed to prevent damage due to vibration or abrasion.
  3. At each point where piping passes through sheet metal or a structural member, a rubber grommet or equivalent protection shall be installed to prevent chafing. [58:6.24.5.1(H)]
Gas piping shall be installed to enter the vehicle through the floor directly beneath or adjacent to the appliance served. [58:6.24.5.1(I)]
If a branch line is installed, the tee connection shall be located in the main gas line under the floor and outside the vehicle. [58:66.24.5.1(J)]
Exposed parts of the fixed piping system either shall be of corrosion-resistant material or shall be coated or protected to minimize exterior corrosion. [58:6.24.5.1(K)]
Hydrostatic relief valves shall be installed in isolated sections of liquid piping as provided in Section 6.13 of NFPA 58. [58:6.24.5.1(L)]
Piping systems, including hose, shall be pressure tested and proven free of leaks in accordance with Section 6.14 of NFPA 58. [58:6.24.5.1(M)]
There shall be no fuel connection between a tractor and trailer or other vehicle units. [58:6.24.5.2]
Equipment shall be installed in accordance with Section 6.18 of NFPA 58 and 69.3.12.6.1 and 69.3.12.6.2. [58:6.24.6]
Installation shall be made in accordance with the manufacturer's recommendations and, in the case of approved equipment, as provided in the approval. [58:6.24.6.1]
Equipment installed on vehicles shall be protected against vehicular damage as provided for container appurtenances and connections in 69.3.12.3.4.5. [58:6.24.6.2]
Paragraph 69.3.12.7 shall apply to the installation of all appliances on vehicles. It shall not apply to engines. [58:6.24.7.1]
All appliances covered by 69.3.12.7 installed on vehicles shall be approved. [58:6.24.7.2]
Where the device or appliance, such as a cargo heater or cooler, is designed to be in operation while the vehicle is in transit, means, such as an excess flow valve to stop the flow of gas in the event of a line break, shall be installed. [58:6.24.7.3]
Gas-fired heating appliances shall be equipped with shutoffs in accordance with 5.20.7(A) of NFPA 58 except for portable heaters used with cylinders having a maximum water capacity of 2.7 lb (1.2 kg), portable torches, melting pots, and tar kettles. [58:6.24.7.4]
Gas-fired heating appliances, other than ranges and illuminating appliances installed on vehicles intended for human occupancy, shall be designed or installed to provide for a complete separation of the combustion system from the atmosphere inside the vehicle. [58:6.24.7.5]
Where unvented-type heaters that are designed to protect cargo are used on vehicles not intended for human occupancy, provisions shall be made to provide air from the outside for combustion and dispose of the products of combustion to the outside. [58:6.24.7.6]
Appliances installed in the cargo space of a vehicle shall be readily accessible whether the vehicle is loaded or empty. [58:6.24.7.7]
Appliances shall be constructed or otherwise protected to minimize possible damage or impaired operation due to cargo shifting or handling. [58:6.24.7.8]
Appliances shall be located so that a fire at any appliance will not block egress of persons from the vehicle. [58:6.24.7.9]
A permanent caution plate shall be affixed to either the appliance or the vehicle outside of any enclosure, shall be adjacent to the container(s), and shall include the following instructions:

CAUTION:

  1. Be sure all appliance valves are closed before opening container valve.
  2. Connections at the appliances, regulators, and containers shall be checked periodically for leaks with soapy water or its equivalent.
  3. Never use a match or flame to check for leaks.
  4. Container valves shall be closed when equipment is not in use. [58:6.24.7.10]
Gas-fired heating appliances and water heaters shall be equipped with automatic devices designed to shut off the flow of gas to the main burner and the pilot in the event the pilot flame is extinguished. [58:6.24.7.11]
Mobile units including mobile kitchens and catering vehicles that contain hotplates and other cooking equipment shall be provided with at least one approved portable fire extinguisher rated in accordance with Section 13.6 and NFPA 10 at not less than 10-B:C. [58:6.24.8.1]
Where fire extinguishers have more than one letter classification, they can be considered as meeting the requirements of each letter class. [58:6.24.8.2]
Where vehicles with LP-Gas fuel systems used for purposes other than propulsion are parked, serviced, or repaired inside buildings, the requirements of 69.3.12.9.2 through 69.3.12.9.4 shall apply. [58:6.24.9.1]
The fuel system shall be leak-free, and the container(s) shall not be filled beyond the limits specified in Chapter 7 of NFPA 58. [58:6.24.9.2]
The container shutoff valve shall be closed, except that the container shutoff valve shall not be required to be closed when fuel is required for test or repair. [58:6.24.9.3]
The vehicle shall not be parked near sources of heat, open flames, or similar sources of ignition, or near unventilated pits. [58:6.24.9.4]
Vehicles having containers with water capacities larger than 300 gal (1.1 m3) shall comply with the requirements of Section 9.7 of NFPA 58. [58:6.24.9.5]
Subsection 69.3.13 includes the location, installation, and operation of vehicle fuel dispensers and dispensing stations. [58:6.25.1.1]
The provisions of 69.3.2 and 69.3.3, as modified by 69.3.13, shall apply. [58:6.25.1.2]
Location of vehicle fuel dispensers and dispensing stations shall be in accordance with Table 69.3.5.2.1. [58:6.25.2.1]
Vehicle fuel dispensers and dispensing stations shall be located away from pits in accordance with Table 69.3.5.2.1, with no drains or blow-offs from the unit directed toward or within 15 ft (4.6 m) of a sewer system's opening. [58:6.25.2.2]
Vehicle fuel dispensers and dispensing stations shall be installed in accordance with the manufacturer's installation instructions. [58:6.25.3.1]
Vehicle fuel dispensers and dispensing stations shall not be located within a building or structure, unless they comply with Chapter 10 of NFPA 58. [58:6.25.3.2]
Where a vehicle fuel dispenser is installed under a weather shelter or canopy, the area shall be ventilated and shall not be enclosed for more than 50 percent of its perimeter. [58:6.25.3.3]
Control for the pump used to transfer LP-Gas through the unit into containers shall be provided at the device in order to minimize the possibility of leakage or accidental discharge. [58:6.25.3.4]
An excess-flow check valve or a differential back pressure valve shall be installed in or on the dispenser at the point at which the dispenser hose is connected to the liquid piping. [58:6.25.3.5]
Piping and the dispensing hose shall be provided with hydrostatic relief valves in accordance with Section 6.13 of NFPA 58. [58:6.25.3.6]
Protection against trespassing and tampering shall be in accordance with 6.19.4 of NFPA 58. [58:6.25.3.7]
The container liquid withdrawal opening used with vehicle fuel dispensers and dispensing stations shall be equipped with one of the following:
  1. An internal valve fitted for remote closure and automatic shutoff using thermal (fire) actuation
  2. A positive shutoff valve that is located as close to the container as practical in combination with an excess-flow valve installed in the container, plus an emergency shutoff valve that is fitted for remote closure and installed downstream in the line as close as practical to the positive shutoff valve [58:6.25.3.8]
An identified and accessible remote emergency shutoff device for either the internal valve or the emergency shutoff valve required by 69.3.13.3.8(1) or (2) shall be installed not less than 3 ft (1 m) or more than 100 ft (30 m) from the liquid transfer point. [58:6.25.3.9]
Emergency shutoff valves and internal valves that are fitted for remote closure as required in this section shall be tested annually for proper operation. [58:6.25.3.10]
A manual shutoff valve and an excess-flow check valve shall be located in the liquid line between the pump and the dispenser inlet where the dispensing device is installed at a remote location and is not part of a complete storage and dispensing unit mounted on a common base. [58:6.25.3.11]
All dispensers shall be installed either on a concrete foundation or shall be part of a complete storage and dispensing unit mounted on a common base and installed in accordance with 6.6.3.1(G) of NFPA 58. [58:6.25.3.12]
Vehicle barrier protection (VBP) shall be provided for containers serving liquid dispensers where those containers are located within 10 ft of a vehicle thoroughfare or parking location. Such protection shall be either 69.3.13.3.13.1 or 69.3.13.3.13.2. [58:6.25.3.13]
Concrete filled guard posts constructed of steel not less than 4 in. (102 mm) in diameter, with the following characteristics:
  1. Spaced not more than 4 ft (1219 mm) between posts on center
  2. Set not less than 3 ft (900 mm) deep in a concrete footing of not less than 15 in. (380 mm) diameter
  3. Set with the top of the posts not less than 3 ft (900 mm) above ground
  4. Located not less than 3 ft (900 mm) from the protected installation [58:6.25.3.13(A)]
Equivalent protection in lieu of guard posts shall be a minimum of 3 ft (900 mm) in height and shall resist a force of 12,000 lb (53.375 N) applied 3 ft (900 mm) above the adjacent ground surface. [58:6.25.3.13(B)]
Where the dispenser is not mounted on a common base with its storage container and the dispensing unit is located within 10 ft of a vehicle thoroughfare, parking location, or a engine fuel filling station, the dispenser shall be provided with VBP. [58:6.25.3.14]
Dispensers shall be protected from physical damage. [58:6.25.3.15]
A listed quick-acting shutoff valve shall be installed at the discharge end of the transfer hose. [58:6.25.3.16]
An identified and accessible switch or circuit breaker shall be installed outside at a location not less than 20 ft (6.1 m) or more than 100 ft (30.5 m) from the dispensing device(s) to shut off the power in the event of a fire, an accident, or other emergency. [58:6.25.3.17]
The markings for the switches or breakers shall be visible at the point of liquid transfer. [58:6.25.3.18]
Hose shall comply with the following:
  1. Hose length shall not exceed 18 ft (5.5 m) unless approved by the AHJ.
  2. All hose shall be listed.
  3. When not in use, the hose shall be secured to protect the hose from damage. [58:6.25.4.1]
A listed emergency breakaway device shall be installed and shall comply with ANSI/UL 567, Standard for Emergency Breakaway Fittings, Swivel Connectors, and Pipe-Connection Fittings for Petroleum Products and LP-Gas, and be designed to retain liquid on both sides of the breakaway point, or other devices affording equivalent protection approved by the AHJ. [58:6.25.4.2]
Dispensing devices for LP-Gas shall be located as follows:
  1. Conventional systems shall be at least 10 ft (3.0 m) from any dispensing device for Class I liquids.
  2. Low-emission transfer systems in accordance with Section 6.28.5 of NFPA 58 shall be at least 5 ft (2 m) from any dispensing device for Class I liquids. [58:6.25.4.3]
Section 69.4 applies to transfers of liquid LP-Gas from one container to another wherever this transfer involves connections and disconnections in the transfer system or the venting of LP-Gas to the atmosphere. [58:7.1.1]
Section 69.4 also applies to operational safety and methods for determining the quantity of LP-Gas permitted in containers. [58:7.1.2]
Transfer operations shall be conducted by qualified personnel meeting the provisions of Section 4.4 of NFPA 58. [58:7.2.1.1]
At least one qualified person shall remain in attendance at the transfer operation from the time connections are made until the transfer is completed, shutoff valves are closed, and lines are disconnected. [58:7.2.1.2]
Transfer personnel shall exercise caution to ensure that the LP-Gases transferred are those for which the transfer system and the containers to be filled are designed. [58:7.2.1.3]
Transfer of LP-Gas to and from a container shall be accomplished only by qualified individuals trained in proper handling and operating procedures meeting the requirements of Section 4.4 of NFPA 58 and in emergency response procedures. [58:7.2.2.1]
When noncompliance with Section 5.2 and Section 5.7 of NFPA 58 is found, the container owner and user shall be notified in writing. [58:7.2.2.2]
Injection of compressed air, oxygen, or any oxidizing gas into containers to transfer LP-Gas liquid shall be prohibited. [58:7.2.2.3]
When evacuating a container owned by others, the qualified person(s) performing the transfer shall not inject any material other than LP-Gas into the container. [58:7.2.2.4]
Valve outlets on refillable cylinders of 108 lb (49 kg) water capacity [nominal 45 lb (20 kg) propane capacity] or less shall be equipped with a redundant pressure-tight seal or one of the following listed connections: CGA790, CGA791, or CGA810, as described in CGA V-l, Standard Compressed Gas Cylinder Valve Outlet and Inlet Connections. [58:7.2.2.5]
Where redundant pressure seals are used, they shall be in place whenever the cylinder is not connected for use. [58:7.2.2.6]
Nonrefillable (disposable) and new unused cylinders shall not be required to be equipped with valve outlet seals. [58:7.2.2.7]
Containers shall be filled only after determination that they comply with the design, fabrication, inspection, marking, and requalification provisions of NFPA 58. [58:7.2.2.8]
Prior to refilling a cylinder that has a cylinder sleeve, the cylinder sleeve shall be removed to facilitate the visual inspection of the cylinder. [58:7.2.2.9]
"Single trip," "nonrefillable," or "disposable" cylinders shall not be refilled with LP-Gas. [58:7.2.2.10]
Containers shall comply with the following with regard to service or design pressure requirements:
  1. The service pressure marked on the cylinder shall be not less than 80 percent of the vapor pressure of the LP-Gas for which the cylinder is designed at 130°F (54.4°C).
  2. The maximum allowable working pressure (MAWP) for ASME containers shall be in accordance with Table 5.2.4.2 of NFPA 58. [58:7.2.2.11]
Transfer of refrigerated product shall be made only into systems that are designed to accept refrigerated product. [58:7.2.2.12]
A container shall not be filled if the container assembly does not meet the requirements for continued service. [58:7.2.2.13]
Transfer hoses larger than 1/2 in. (12 mm) internal diameter shall not be used for making connections to individual cylinders being filled indoors. [58:7.2.2.14]
Public access to areas where LP-Gas is stored and transferred shall be prohibited, except where necessary for the conduct of normal business activities. [58:7.2.3.1]
Sources of ignition shall be turned off during transfer operations, while connections or disconnections are made, or while LP-Gas is being vented to the atmosphere. [58:7.2.3.2]
Internal combustion engines within 15 ft (4.6 m) of a point of transfer shall be shut down while such transfer operations are in progress, with the exception of the following:
  1. Engines of LP-Gas cargo tank vehicles, constructed and operated in compliance with Chapter 9 of NFPA 58, while such engines are driving transfer pumps or compressors on these vehicles to load containers in accordance with 6.5.2.2 of NFPA 58
  2. Engines for industrial (and forklift) trucks powered by LP-Gas used in buildings as provided in Section 11.13 of NFPA 58 [58:7.2.3.2(A)]
Smoking, open flame, portable electrical tools, and extension lights capable of igniting LP-Gas shall not be permitted within 25 ft (7.6 m) of a point of transfer while filling operations are in progress. [58:7.2.3.2(B)]
Metal cutting, grinding, oxygen-fuel gas cutting, brazing, soldering, or welding shall not be permitted within 35 ft (10.7 m) of a point of transfer while filling operations are in progress. [58:7.2.3.2(C)]
Materials that have been heated above the ignition temperature of LP-Gas shall be cooled before LP-Gas transfer is started. [58:7.2.3.2(D)]
Sources of ignition shall be turned off during the filling of any LP-Gas container on the vehicle. [58:7.2.3.2(E)]
Cargo tank vehicles unloading into storage containers shall be at least 10 ft (3.0 m) from the container and so positioned that the shutoff valves on both the truck and the container are readily accessible. [58:7.2.3.3]
The cargo tank vehicle shall not transfer LP-Gas into dispensing station storage while parked on a public way. [58:7.2.3.4]
Transfers to containers serving agricultural or industrial equipment requiring refueling in the field shall comply with 69.4.2.3.5.1 and 69.4.2.3.5.2. [58:7.2.3.5]
Where the intake of air-moving equipment is less than 50 ft (15 m) from a point of transfer, it shall be shutdown while containers are being refilled. [58:7.2.3.5(A)]
Equipment employing open flames or equipment with integral containers shall be shut down while refueling. [58:7.2.3.5(B)]
During the time railroad tank cars are on sidings for loading or unloading, the following shall apply:
  1. A caution sign, with wording such as "STOP. TANK CAR CONNECTED," shall be placed at the active end(s) of the siding while the car is connected, as required by DOT regulations.
  2. Wheel chocks shall be placed to prevent movement of the car in either direction. [58:7.2.3.6]
Where a hose or swivel-type piping is used for loading or unloading railroad tank cars, it shall be protected as follows:
  1. An emergency shutoff valve shall be installed at the railroad tank car end of the hose or swivel-type piping where flow into or out of the railroad tank car is possible.
  2. An emergency shutoff valve or a backflow check valve shall be installed on the railroad tank car end of the hose or swivel piping where flow is only into the railroad tank car. [58:7.2.3.7]
Where cargo tank vehicles are filled directly from railroad tank cars on a private track with nonstationary storage tanks involved, the following requirements shall be met:
  1. Transfer protection shall be provided in accordance with 69.3.8.
  2. Ignition source control shall be in accordance with Section 6.23 of NFPA 58.
  3. Control of ignition sources during transfer shall be provided in accordance with 69.4.2.3.2.
  4. Fire extinguishers shall be provided in accordance with 9.4.7 of NFPA 58.
  5. Transfer personnel shall meet the provisions of 69.4.2.1.
  6. Cargo tank vehicles shall meet the requirements of 69.4.2.3.
  7. The points of transfer shall be located in accordance with 69.3.5.2.1 with respect to exposures.
  8. Provision for anchorage and breakaway shall be provided on the cargo tank vehicle side for transfer from a railroad tank car directly into a cargo tank vehicle.
  9. The provisions of Chapter 14 of NFPA 58 shall apply to all LP-Gas transfers performed in accordance with 69.4.2.3.8. [58:7.2.3.8]
Where cargo tank vehicles are filled from other cargo tank vehicles or cargo tanks, the following requirements shall apply:
  1. Transfer between cargo tanks or cargo tank vehicles where one is used as a bulk plant shall be temporary installations that comply with 4.3.2, 6.19.1, 6.19.2, 6.19.4 through 6.19.6 of NFPA 58, and 69.4.2.3.1.
  2. Arrangements and operations of the transfer system shall be in accordance with the following:
    1. The point of transfer shall be in accordance with Table 69.3.5.2.1.
    2. Sources of ignition within the transfer area shall be controlled during the transfer operation as specified in 69.4.2.3.2.
    3. Fire extinguishers shall be provided in accordance with 9.4.7 of NFPA 58.
  3. Cargo tanks shall comply with the requirements of 69.4.2.2.8.
  4. Provisions designed either to prevent a pull-away during a transfer operation or to stop the flow of products from both cargo tank vehicles or cargo tanks in the event of a pull-away shall be incorporated.
  5. Off-truck remote shutoff devices that meet 49 CFR 173.315(n) requirements and are installed on the cargo tank vehicle unloading the product shall satisfy the requirements of 69.4.2.3.9.
  6. Cargo tank vehicle LP-Gas transfers that are for the sole purpose of testing, maintaining, or repairing the cargo tank vehicle shall be exempt from the requirements of 69.4.2.3.9. [58:7.2.3.9]
Hose assemblies shall be observed for leakage or for damage that could impair their integrity before each use. [58:7.2.4.1]
The hose assemblies specified in 69.4.2.4.1 shall be inspected at least annually. [58:7.2.4.2]
Inspection of pressurized hose assemblies shall include inspection for the following:
  1. Damage to outer cover that exposes reinforcement
  2. Kinked or flattened hose
  3. Soft spots or bulges in hose
  4. Couplings that have slipped on the hose, are damaged, have missing parts, or have loose bolts
  5. Leakage other than permeability leakage [58:7.2.4.3]
Hose assemblies shall be replaced, repaired, or continued in service based on the results of the inspection. [58:7.2.4.4]
Leaking or damaged hose shall be immediately repaired or removed from service. [58:7.2.4.5]
LP-Gas in either liquid or vapor form shall not be vented to the atmosphere unless it is vented under the following conditions:
  1. Venting of LP-Gas shall be permitted where the maximum flow from fixed liquid level, rotary, or slip tube gauges does not exceed that from a No. 54 drill orifice.
  2. Venting of LP-Gas between shutoff valves before disconnecting the liquid transfer line from the container shall be permitted.
  3. Venting of LP-Gas, where necessary, shall be permitted to be performed by the use of bleeder valves.
  4. Venting of LP-Gas shall be permitted for the purposes described in 69.4.3.1(1) and 69.4.3.1(2) within structures designed for container filling in accordance with Chapter 10 of NFPA 58.
  5. Venting of LP-Gas listed liquid transfer pumps using such vapor as a source of energy shall be permitted where the rate of discharge does not exceed the discharge from a No. 31 drill size orifice.
  6. Venting of LP-Gas for purging in accordance with 7.3.2 of NFPA 58 shall be permitted.
  7. Venting of LP-Gas shall be permitted for emergencies.
  8. Venting of LP-Gas vapor utilized as the pressure source in remote shutdown systems for internal valves and emergency shutoff valves shall be permitted. [58:7.3.1]
The provisions of Section 69.5 apply to the storage of cylinders of 1000 lb (454 kg) water capacity or less, whether filled, partially filled, or empty, as follows:
  1. At consumer sites or dispensing stations, where not connected for use
  2. In storage for resale or exchange by dealer or reseller [58:8.1.1]
Section 69.5 does not apply to new or unused cylinders. [58:8.1.2]
Section 69.5 does not apply to cylinders stored at bulk plants. [58:8.1.3]
Cylinders in storage shall be located to minimize exposure to excessive temperature rises, physical damage, or tampering. [58:8.2.1.1]
Cylinders in storage having individual water capacity greater than 2.7 lb (1.1 kg) [nominal 1 lb (0.45 kg) LP-Gas capacity] shall be positioned so that the pressure relief valve is in direct communication with the vapor space of the cylinder. [58:8.2.1.2]
Cylinders stored in buildings in accordance with 69.5.3 shall not be located near exits, near stairways, or in areas normally used, or intended to be used, for the safe egress of occupants. [58:8.2.1.3]
If empty cylinders that have been in LP-Gas service are stored indoors, they shall be considered as full cylinders for the purposes of determining the maximum quantities of LP-Gas permitted by 69.5.3.1, 69.5.3.2.1, and 69.5.3.3.1. [58:8.2.1.4]
Cylinders shall not be stored on roofs. [58:8.2.1.5]
Cylinder valves shall be protected as required by 69.2.1.2.1 and 69.4.2.2.5. [58:8.2.2.1]
Screw-on-type caps or collars shall be in place on all cylinders stored, regardless of whether they are full, partially full, or empty, and cylinder outlet valves shall be closed. [58:8.2.2.2]
Valve outlets on cylinders less than 108 lb (49 kg) water capacity [nominal 45 lb (20 kg) propane capacity] shall be plugged, capped, or sealed in accordance with 69.4.2.2.5. [58:8.2.2.3]
Storage of cylinders in buildings shall be in accordance with Table 69.5.3.1(a) or Table 69.5.3.1(b) or the requirements of 69.5.3. [58:8.3.1]

Table 69.5.3.1(a) Maximum Allowable Storage Quantities of LP-Gas in Other Than Industrial, Storage, and Mercantile Occupancies

Occupancy Assembly Educational Day Care Health Care Ambulatory Health Care Detention and Correctional One- and Two-Family Dwellings Lodging or Rooming House Hotel and Dormitory Apartment Residential Board and Care Business
Maximum Allowable Quantity (MAQ):
Storage (state units: lb, gal, etc.) 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb
MAQ increases for: Maximum 1 lb cylinders 1 lb cylinder
Total (including cabinets) 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb
Total for suppression 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb
Total for both cabinets and suppression 0 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb 2 lb
Attended catered food service per NFPA 58 in 10 oz maximum cylinders 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb
15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb
Additional 10 oz cylinders w/ 2-hr fire wall 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb 15 lb
Other
Total (including threshold) for other 20 lb 20 lb 0 5 lb
Flame effects per NFPA 160. Additional 20 lb units with 20 ft (6 m) separation. In labs, not in classrooms. Additional 20 lb units with 20 ft (6 m) separation. In labs only. Additional 5 lb units with 20 ft separation Amounts per dwelling

[58: Table 8.3.1(a)]

For SI units, 1 lb = 0.45 kg, 1 oz = 0.028 kg.

Table 69.5.3.1(b) Maximum Allowable Storage Quantities of LP-Gas in Mercantile, Industrial, and Storage Occupancies

Occupancy Mercantile Industrial Storage
Maximum Allowable Quantity (MAQ):
Storage (state units: lb, gal, etc.) 200 lb (1 lb maximum/cylinder) 300 lb 300 lb
MAQ increases for:
Total (including threshold) for cabinets 200 lb 300 lb 300 lb
Total (including threshold) for suppression 200 lb 300 lb 300 lb
Total (including threshold) for both cabinets and suppression 200 lb 300 lb 300 lb
Total (including threshold) for other (describe) 1000 lb Additional 300 lb 10,000 lb
Separation of groups of 200 lb by 50 ft and a sprinkler density of 0.300 gpm (1.1 L/min) over the most remote 2000 ft2 (18.6 m2) area and 250 gpm (946 L/min) hose stream allowance 300 ft separation In special rooms or buildings per Chapter 10 of NFPA 58

[58: Table 8.3.1(b)]

For SI units, 1 lb = 0.45 kg; 1 gpm = 3.8 L/min; 1 ft = 0.3 m; 1 ft2 = 0.09 m2.

The quantity of LP-Gas in cylinders stored or displayed shall not exceed 200 lb (91 kg) in one location, with additional storage separated by 50 ft (15 m). The maximum quantity to be stored in one building shall not exceed 1000 lb (454 kg). [58:8.3.2.1]
Where the total quantity stored in a building exceeds 200 lb (91 kg), an approved sprinkler system that, at a minimum, meets the requirement of Section 13.3 and NFPA 13 for Ordinary Hazard (Group 2) shall be installed. [58:8.3.2.1(A)]
The sprinkler density shall be 0.300 gpm (12.2 L/min) over the most remote 2000 ft2 (18.6 m2) area, and the hose stream allowance shall be 250 gpm (946 L/min). [58:8.3.2.1 (B)]
The cylinders shall not exceed a water capacity of 2.7 lb (1.1 kg) [nominal 1 lb (0.45 kg) LP-Gas], [58:8.3.2.2]
In restaurants and at food service locations, storage of 10 oz (283 g) butane nonrefillable containers shall be limited to not more than 24 containers and 24 additional 10 oz (283 g) butane nonrefillable containers stored in another location within the building where constructed with at least 2-hour fire wall protection. [58:8.3.2.3]
The maximum quantity of LP-Gas allowed in one storage location shall not exceed 735 lb (334 kg) water capacity [nominal 300 lb (136 kg) propane capacity]. [58:8.3.3.1]
Where additional storage locations are required on the same floor within the same building, they shall be separated by a minimum of 300 ft (91.4 m). [58:8.3.3.2]
Storage beyond the limitations described in 69.5.3.3.2 shall comply with 69.5.3.4. [58:8.3.3.3]
Cylinders carried as part of the service equipment on highway mobile vehicles shall not be part of the total storage capacity requirements of 69.5.3.3.1, where such vehicles are stored in private garages and carry no more than three cylinders with a total aggregate capacity per vehicle not exceeding 100 lb (45.4 kg) of propane. [58:8.3.3.4]
Cylinder valves shall be closed when not in use. [58:8.3.3.5]
The maximum quantity of LP-Gas stored in special buildings or rooms shall be 10,000 lb (4540 kg). [58:8.3.4.1]
Special buildings or rooms for storing LP-Gas cylinders shall not be located where the buildings or rooms adjoin the line of property occupied by schools, churches, hospitals, athletic fields, or other points of public gathering. [58:8.3.4.2]
The construction of all special buildings and rooms specified in 69.5.3.4.2 shall comply with Chapter 10 of NFPA 58 and the following:
  1. Vents to the outside only shall be provided at both the top and bottom of the building and shall be located at least 5 ft (1.5 m) from any building opening.
  2. The entire area shall be classified for purposes of ignition source control in accordance with Section 6.23 of NFPA 58. [58:8.3.4.3]
Storage of cylinders within a residential building, including the basement or any storage area in a common basement of a multiple-family building and attached or detached garages, shall be limited to cylinders each with a maximum water capacity of 2.7 lb (1.2 kg) and shall not exceed 5.4 lb (2.4 kg) aggregate water capacity per each living space unit. [58:8.3.5]
Storage outside of buildings for cylinders awaiting use or resale or that are part of a cylinder exchange point shall be located as follows:
  1. At least 5 ft (1.5 m) from any doorway or opening in a building frequented by the public where occupants have at least two means of egress as defined by 3.3.176 and NFPA 101
  2. At least 10 ft (3 m) from any doorway or opening in a building or sections of a building that has only one means of egress
  3. At least 20 ft (6.1 m) from any automotive service station fuel dispenser [58:8.4.1.1]
Distances from cylinders in storage outside of buildings shall be in accordance with Table 69.5.4.1.2 with respect to the following:
  1. Nearest important building or group of buildings
  2. Line of adjoining property that can be built upon
  3. Busy thoroughfares or sidewalks on other than private property
  4. Line of adjoining property occupied by schools, churches, hospitals, athletic fields, or other points of public gathering
  5. Dispensing station [58:8.4.1.2]

Table 69.5.4.1.2 Distances from Cylinders in Storage and Exposures

Quantity of LP-Gas Stored Horizontal Distance to …
(1) and (2) (3) and (4) (5)
lb kg ft m ft m ft m
≤720 ≤227 0 0 0 0 5 1.5
721—2,500 >227—1,134 0 0 10 3 10 3
2,501—6,000 >1,134—2,721 10 3 10 3 10 3
6,001—10,000 >2,721—4,540 20 6.1 20 6.1 20 6.1
>10,000 >4,540 25 7.6 25 7.6 25 7.6

[58: Table 8.4.1.2]

(A) The distances in Table 69.5.4.1.2 shall be reduced to 0 where a 2-hour fire-resistive protective structure made of noncombustible materials is provided that breaks the line of sight of the storage and the building. [58:8.4.1.3(A)]

(B) For buildings with exterior walls rated 2-hour fire resistance and constructed of noncombustible materials not provided with eaves over the storage, the exterior wall shall be allowed in lieu of a protective structure to reduce the distance to 0. [58:8.4.1.3(B)]

Cylinders in the filling process shall not be considered to be in storage. [58:8.4.1.4]
Cylinders at a location open to the public shall be protected by either of the following:
  1. An enclosure in accordance with 6.19.4.2 of NFPA 58
  2. A lockable ventilated enclosure of metal exterior construction [58:8.4.2.1]
Vehicular barrier protection (VBP) shall be provided where vehicle traffic is expected at the location. [58:8.4.2.2]
Where the provisions of 69.5.4.1 and 69.5.4.2.1 are impractical at construction sites or at buildings or structures undergoing major renovation or repairs, alternative storage of cylinders shall be acceptable to the AHJ. [58:8.4.3]
Retail cylinder exchange locations shall be provided with at least one approved portable fire extinguisher having a minimum capacity of 10 lb (4.5 kg) dry chemical with an A:B:C rating complying with 69.5.5.3 on the premises where retail cylinder exchange cabinets are storing more than 720 lb (327 kg) of propane. [58:8.5.1]
Storage locations, other than those complying with 69.5.5.1, where the aggregate quantity of propane stored is in excess of 720 lb (327 kg), shall be provided with at least one approved portable fire extinguisher having a 40-B:C or 80-B:C rating and a minimum capacity of 18 lb (8.2 kg) dry chemical. [58:8.5.2]
The required fire extinguisher shall be located in accordance with 69.5.5.3.1 and 69.5.5.3.2. [58:8.5.3]
A 40-B:C fire extinguisher shall be located not more than 30 ft (10 m) from the propane storage location. [58:8.5.3.1]
An 80-B:C fire extinguisher shall be located not more than 50 ft (15 m) from the propane storage location. [58:8.5.3.2]
Where fire extinguishers have more than one letter classification, they shall be considered to satisfy the requirements of each letter class. [58:8.5.4]
The storage of cylinders awaiting resale shall be exempt from the electrical classification requirements of NFPA 58. [58:8.5.5]
Cylinder exchange cabinets that include an automated vending system for exchanging cylinders shall comply with the requirements in 69.5.6.2 through 69.5.6.6. [58:8.6.1]
Electrical equipment installed in cylinder storage compartments shall comply with the requirements for Class I, Division 2 equipment in accordance with NFPA 70, National Electrical Code. [58:8.6.2]
Cabinets shall be designed such that cylinders can be placed inside only in the upright position. [58:8.6.3]
Door releases for access to stored cylinders shall be permitted to be pneumatic, mechanical, or electrically powered. [58:8.6.4]
A manual override control shall be permitted for use by authorized personnel. [58:8.6.5]
The vending system shall not be capable of returning to automatic operation after a manual override until the system has been inspected and reset by authorized personnel. [58:8.6.6]
Cylinders having an individual water capacity not exceeding 1000 lb (454 kg) [nominal 420 lb (191 kg) propane capacity], when filled with LP-Gas, shall be transported in accordance with the requirements of 69.6.1. [58:9.3.2.1]
Cylinders shall be constructed as provided in 69.2.1 and equipped in accordance with Section 5.7 of NFPA 58 for transportation as cylinders. [58:9.3.2.2]
The quantity of LP-Gas in cylinders shall be in accordance with Chapter 7 of NFPA 58. [58:9.3.2.3]
Cylinder valves shall comply with the following:
  1. Valves of cylinders shall be protected in accordance with 69.2.1.2.1.
  2. Screw-on-type protecting caps or collars shall be secured in place.
  3. The provisions of 69.4.2.2.5 shall apply. [58:9.3.2.4]
The cargo space of the vehicle shall be isolated from the driver's compartment, the engine, and the engine's exhaust system. [58:9.3.2.5]
Open-bodied vehicles shall be considered to be in compliance with 69.6.1.1.5.
Closed-bodied vehicles having separate cargo, driver, and engine compartments shall be considered to be in compliance with 69.6.1.1.5. [58:9.3.2.5(B)]
Closed-bodied vehicles, such as passenger cars, vans, and station wagons, shall not be used for transporting more than 215 lb (98 kg) water capacity [nominal 90 lb (41 kg) propane capacity], but not more than 108 lb (49 kg) water capacity [nominal 45 lb (20 kg) propane capacity] per cylinder, unless the driver and engine compartments are separated from the cargo space by a vaportight partition that contains no means of access to the cargo space. [58:9.3.2.5(C)]
Cylinders and their appurtenances shall be determined to be leak-free before being loaded into vehicles. [58:9.3.2.6]
Cylinders shall be loaded into vehicles with flat floors or equipped with racks for holding cylinders. [58:9.3.2.7]
Cylinders shall be fastened in position to minimize the possibility of movement, tipping, and physical damage. [58:9.3.2.8]
Cylinders being transported by vehicles shall be positioned in accordance with Table 69.6.1.1.9. [58:9.3.2.9]

Table 69.6.1.1.9 Orientation of Cylinders on Vehicles

Propane Capacity of Cylinder Open Vehicles Enclosed Spaces of Vehicles
lb kg
≤45 ≤20 Any position
>45 >20 Relief valve in communication with the vapor space
≤4.2 ≤1.9 Any position
>4.2 >1.9 Relief valve in communication with the vapor space

[58:Table 9.3.2.9]

Vehicles transporting cylinders where the total weight is more than 1000 lb (454 kg), including the weight of the LP-Gas and the cylinders, shall be placarded as required by DOT regulations or state law. [58:9.3.2.10]
Each truck or trailer transporting portable containers in accordance with 69.6.1.1 or 9.3.3 of NFPA 58 shall be equipped with at least one approved portable fire extinguisher having a minimum capacity of 18 lb (8.2 kg) dry chemical with a B:C rating. [58:9.3.5.1]
Where fire extinguishers have more than one letter classification, they shall be considered to satisfy the requirements of each letter class. [58:9.3.5.2]
Subsection 69.6.2 applies to the parking and garaging of vehicles used for the transportation of LP-Gas. [58:9.7.1]
Vehicles shall not be left unattended on any street, highway, avenue, or alley, except for necessary absences from the vehicle associated with drivers' normal duties, including stops for meals and rest stops during the day or night, except as follows:
  1. This requirement shall not apply in an emergency.
  2. This requirement shall not apply to vehicles parked in accordance with 69.6.2.2.3 and 69.6.2.2.4. [58:9.7.2.1]
Vehicles shall not be parked in congested areas. [58:9.7.2.2]
Where vehicles are parked off the street in uncongested areas, they shall be at least 50 ft (15 m) from any building used for assembly, institutional, or multiple residential occupancy. [58:9.7.2.3]
Where vehicles carrying portable containers or cargo tank vehicles of 3500 gal (13 m3) water capacity or less are parked on streets adjacent to the driver's residence in uncongested residential areas, the parking locations shall be at least 50 ft (15 m) from a building used for assembly, institutional, or multiple residential occupancy. [58:9.7.2.4]
Cargo tank vehicles parked in any public garage or building shall have LP-Gas liquid removed from the following:
  1. Cargo tank
  2. Piping
  3. Pump
  4. Meter
  5. Hose
  6. Related equipment [58:9.7.3.1]
Vehicles used to carry portable containers shall not be moved into any public garage or building for parking until all portable containers have been removed from the vehicle. [58:9.7.3.2]
The pressure in the delivery hose and related equipment shall be reduced to approximately atmospheric. [58:9.7.3.3]
All valves shall be closed before the vehicle is moved indoors. [58:9.7.3.4]
Delivery hose or valve outlets shall be plugged or capped before the vehicle is moved indoors. [58:9.7.3.5]
Vehicles carrying or containing LP-Gas shall only be parked in buildings complying with Chapter 10 of NFPA 58 and located on premises owned or under the control of the operator of such vehicles where the following provisions are met:
  1. The public shall be excluded from such buildings.
  2. Floor level ventilation shall be provided in all parts of the building where such vehicles are parked.
  3. Leaks in the vehicle LP-Gas systems shall be repaired before the vehicle is moved indoors.
  4. Primary shutoff valves on cargo tanks and other LP-Gas containers on the vehicle (except propulsion engine fuel containers) shall be closed and delivery hose outlets plugged or capped to contain system pressure before the vehicle is moved indoors.
  5. Primary shutoff valves on LP-Gas propulsion engine fuel containers shall be closed while the vehicle is parked.
  6. No LP-Gas container shall be located near a source of heat or within the direct path of hot air being blown from a blower-type heater.
  7. LP-Gas containers shall be gauged or weighed to determine that they are not filled beyond the maximum filling limit according to Section 7.4 of NFPA 58. [58:9.7.3.6]
Where vehicles are serviced or repaired indoors, the following shall apply:
  1. When it is necessary to move a vehicle into any building located on premises owned or operated by the operator of such vehicle for service on engine or chassis, the provisions of 69.6.2.3.6 shall apply.
  2. When it is necessary to move a vehicle carrying or containing LP-Gas into any public garage or repair facility for service on the engine or chassis, the provisions of 69.6.2.3.1 shall apply, or the driver or a qualified representative of an LP-Gas operator shall be in attendance at all times while the vehicle is indoors, and the following shall apply:
    1. Leaks in the vehicle LP-Gas systems shall be repaired before the vehicle is moved indoors.
    2. Primary shutoff valves on cargo tanks, portable containers, and other LP-Gas containers installed on the vehicle (other than propulsion engine fuel containers) shall be closed.
    3. LP-Gas liquid shall be removed from the piping, pump, meter, delivery hose, and related equipment and the pressure therein reduced to approximately atmospheric before the vehicle is moved inside.
    4. Delivery hose or valve outlets shall be plugged or capped before the vehicle is moved indoors.
    5. No container shall be located near a source of heat or within the direct path of hot air blown from a blower or from a blower-type heater.
    6. LP-Gas containers shall be gauged or weighed to determine that they are not filled beyond the maximum filling capacity in accordance with Section 7.4 of NFPA 58. [58:9.7.3.7]
If repair work or servicing is to be performed on a cargo tank vehicle system, all LP-Gas shall be removed from the cargo tank and piping, and the system shall be thoroughly purged before the vehicle is moved indoors. [58:9.7.3.8]
The design, construction, location, installation, and operation of refrigerated and nonrefrigerated liquefied petroleum gas systems at utility gas plants shall be in accordance with NFPA 59, Utility LP-Gas Plant Code.
The design, location, construction, and operation of liquified natural gas facilities shall be in accordance with NFPA 59A, Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG).
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