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The maximum allowable quantity per control area shall be as specified in Tables 5003.1.1(1) through 5003.1.1(4).
For retail and wholesale storage and display in Group M occupancies and Group S storage, see Section 5003.11.
TABLE 5003.1.1(1)
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A PHYSICAL HAZARDa, j, m, n, p
MATERIAL CLASS GROUP WHEN THE MAXIMUM ALLOWABLE QUANTITY IS EXCEEDED STORAGEb USE-CLOSED SYSTEMSb USE-OPEN SYSTEMSb
Solid pounds
(cubic feet)
Liquid gallons (pounds) Gas
(cubic feet at NTP)
Solid pounds
(cubic feet)
Liquid gallons
(pounds)
Gas
(cubic feet at NTP)
Solid pounds
(cubic feet)
Liquid gallons
(pounds)
Combustible dust NA H-2 See Note q NA NA See Note q NA NA See Note q NA
Combustible fibersq Loose H-3 (100) NA NA (100) NA NA (20) NA
Baledo (1,000) (1,000) (200)
Combustible liquidc, i II H-2 or H-3 NA 120d, e NA NA 120d NA NA 30d
IIIA H-2 or H-3 330d, e 330d 80d
IIIB NA 13,200e, f 13,200f 3,300f
Cryogenic
Flammable
NA H-2 NA 45d NA NA 45d NA NA 10d
Cryogenic
Inert
NA NA NA NA NL NA NA NL NA NA
Cryogenic
Oxidizing
NA H-3 NA 45d NA NA 45d NA NA 10d
Explosives Division 1.1 H-1 1e, g (1)e, g NA 0.25g (0.25)g NA 0.25g (0.25)g
Division 1.2 H-1 1e, g (1)e, g 0.25g (0.25)g 0.25g (0.25)g
Division 1.3 H-1 or H-2 5e, g (5)e, g 1g (1)g 1g (1)g
Division 1.4 H-3 50e, g (50)e, g 50g (50)g NA NA
Division 1.4G H-3 125e, l NA NA NA NA NA
Division 1.5 H-1 1e, g (1)e, g 0.25g (0.25)g 0.25g (0.25)g
Division 1.6 H-1 1e, g NA NA NA NA NA
Flammable gas Gaseous H-2 NA NA 1,000d, e NA NA 1,000d, e NA NA
Liquefied (150)d, e NA (150)d, e NA
Flammable liquidc IA
IB and IC
H-2
or
H-3
NA 30d, e NA NA 30d NA NA 10d
120d, e 120d 30d
Flammable liquid, combination (IA, IB, IC) NA H-2
or
H-3
NA 120d, e, h NA NA 120d, h NA NA 30d, h
Flammable solid NA H-3 125d, e NA NA 125d NA NA 25d NA
Inert gas Gaseous NA NA NA NL NA NA NL NA NA
Liquefied NA NA NA NL NA NA NL NA NA
Organic peroxide UD H-1 1e, g (1)e, g NA 0.25g (0.25)g NA 0.25g (0.25)g
I H-2 5d, e (5)d, e 1d (1)d 1d (1)d
II H-3 50d, e (50)d, e 50d (50)d 10d (10)d
III H-3 125d, e (125)d, e 125d (125)d 25d (25)d
IV NA NL NL NL NL NL NL
V NA NL NL NL NL NL NL
Oxidizer 4 H-1 1g (1)e, g NA 0.25g (0.25)g NA 0.25g (0.25)g
3k H-2 or H-3 10d, e (10)d, e 2d (2)d 2d (2)d
2 H-3 250d, e (250)d, e 250d (250)d 50d (50)d
1 NA 4,000e, f (4,000)e, f 4,000f (4,000)f 1,000f (1,000)f
Oxidizing gas Gaseous H-3 NA NA 1,500d,e NA NA 1,500d,e NA NA
Liquefied (150)d, e NA (150)d, e NA
Pyrophoric NA H-2 4e, g (4)e, g 50e, g 1g (1)g 10e, g 0 0
Unstable (reactive) 4 H-1 1e, g (1)e, g 10e, g 0.25g (0.25)g 2e, g 0.25g (0.25)g
3 H-1 or H-2 5d, e (5)d, e 50d, e 1d (1)d 10d, e 1d (1)d
2 H-3 50d, e (50)d, e 750d, e 50d (50)d 750d, e 10d (10)d
1 NA NL NL NL NL NL NL NL NL
Water reactive 3 H-2 5d, e (5)d, e NA 5d (5)d NA 1d (1)d
2 H-3 50d, e (50)d, e 50d (50)d 10d (10)d
1 NA NL NL NL NL NL NL
For SI: 1 cubic foot = 0.02832 m3, 1 pound = 0.454 kg, 1 gallon = 3.785 L.
NA = Not Applicable, NL = Not Limited, UD = Unclassified Detonable.
  1. For use of control areas, see Section 5003.8.3.
  2. The aggregate quantity in use and storage shall not exceed the quantity listed for storage.
  3. The quantities of alcoholic beverages in retail and wholesale sales occupancies shall not be limited providing the liquids are packaged in individual containers not exceeding 1.3 gallons. In retail and wholesale sales occupancies, the quantities of medicines, foodstuff or consumer products and cosmetics containing not more than 50 percent by volume of water-miscible liquids with the remainder of the solutions not being flammable shall not be limited, provided that such materials are packaged in individual containers not exceeding 1.3 gallons.
  4. Maximum allowable quantities shall be increased 100 percent in buildings equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1. Where Note e applies, the increase for both notes shall be applied accumulatively.
  5. Maximum allowable quantities shall be increased 100 percent where stored in approved storage cabinets, day boxes, gas cabinets, gas rooms, exhausted enclosures or in listed safety cans in accordance with Section 5003.9.10. Where Note d applies, the increase for both notes shall be applied accumulatively.
  6. Quantities shall not be limited in a building equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1.
  7. Allowed only in buildings equipped throughout with an approved automatic sprinkler system.
  8. Containing not more than the maximum allowable quantity per control area of Class IA, Class IB or Class IC flammable liquids.
  9. The maximum allowable quantity shall not apply to fuel oil storage complying with Section 605.4.2.
  10. Quantities in parenthesis indicate quantity units in parenthesis at the head of each column.
  11. A maximum quantity of 220 pounds of solid or 22 gallons of liquid Class 3 oxidizers is allowed where such materials are necessary for maintenance purposes, operation or sanitation of equipment where the storage containers and the manner of storage are approved.
  12. Net weight of pyrotechnic composition of the fireworks. Where the net weight of the pyrotechnic composition of the fireworks is not known, 25 percent of the gross weight of the fireworks including packaging shall be used.
  13. For gallons of liquids, divide the amount in pounds by 10 in accordance with Section 5003.1.2.
  14. For storage and display quantities in Group M and storage quantities in Group S occupancies complying with Section 5003.11, see Table 5003.11.1.
  15. Densely-packed baled cotton that complies with the packing requirements of ISO 8115 shall not be included in this material class.
  16. The following shall not be included in determining the maximum allowable quantities:
    1. Liquid or gaseous fuel in fuel tanks on vehicles.
    2. Liquid or gaseous fuel in fuel tanks on motorized equipment operated in accordance with this code.
    3. Gaseous fuels in piping systems and fixed appliances regulated by the International Fuel Gas Code.
    4. Liquid fuels in piping systems and fixed appliances regulated by the International Mechanical Code.
    5. Alcohol-based hand rubs classified as Class I or II liquids in dispensers that are installed in accordance with Sections 5705.5 and 5705.5.1. The location of the alcohol-based hand rub (ABHR) dispensers shall be provided in the construction documents.
  17. Where manufactured, generated or used in such a manner that the concentration and conditions create a fire or explosion hazard based on information prepared in accordance with Section 104.8.2.
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A HEALTH HAZARDa, c, f, h, i
MATERIAL STORAGEb USE-CLOSED SYSTEMSb USE-OPEN SYSTEMSb
Solid poundsd, e Liquid gallons
(pounds)d, e
Gas cubic feet at NTP
(pounds)d
Solid poundsd Liquid gallons
(pounds)d
Gas cubic feet at NTP
(pounds)d
Solid poundsd Liquid gallons
(pounds)d
Corrosives 5,000 500 Gaseous 810e 5,000 500 Gaseous 810e 1,000 100
Liquefied (150)
Liquefied (150)
Highly toxics 10 (10) Gaseous 20g 10 (10) Gaseous 20g 3 (3)
Liquefied (4)g
Liquefied (4)g
Toxics 500 (500) Gaseous 810e 500 (500) Gaseous 810e 125 (125)
Liquefied (150)e
Liquefied (150)e
For SI: 1 cubic foot = 0.02832 m3, 1 pound = 0.454 kg, 1 gallon = 3.785 L.
  1. For use of control areas, see Section 5003.8.3.
  2. The aggregate quantity in use and storage shall not exceed the quantity listed for storage.
  3. In retail and wholesale sales occupancies, the quantities of medicines, foodstuff or consumer products and cosmetics, containing not more than 50 percent by volume of water-miscible liquids and with the remainder of the solutions not being flammable, shall not be limited, provided that such materials are packaged in individual containers not exceeding 1.3 gallons.
  4. Maximum allowable quantities shall be increased 100 percent in buildings equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1. Where Note e also applies, the increase for both notes shall be applied accumulatively.
  5. Maximum allowable quantities shall be increased 100 percent where stored in approved storage cabinets, gas cabinets or exhausted enclosures. Where Note d applies, the increase for both notes shall be applied accumulatively.
  6. For storage and display quantities in Group M and storage quantities in Group S occupancies complying with Section 5003.11, see Table 5003.11.1.
  7. Allowed only where stored in approved exhausted gas cabinets or exhausted enclosures.
  8. Quantities in parentheses indicate quantity units in parentheses at the head of each column.
  9. For gallons of liquids, divide the amount in pounds by 10 in accordance with Section 5003.1.2.
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A PHYSICAL HAZARD IN AN OUTDOOR CONTROL AREAa, b, c, d
MATERIAL CLASS STORAGEb USE-CLOSED SYSTEMSb USE-OPEN SYSTEMSb
Solid pounds
(cubic feet)
Liquid gallons
(pounds)d
Gas cubic feet at NTP Solid pounds
(cubic feet)
Liquid gallons
(pounds)d
Gas cubic feet at NTP Solid pounds
(cubic feet)
Liquid gallons
(pounds)d
Flammable gas Gaseous Not Applicable Not Applicable 3,000 Not Applicable Not Applicable 1,500 Not Applicable Not Applicable
Liquefied
(300)
Not Applicable
(150)
Not Applicable
Flammable solid Not Applicable 500 Not Applicable Not Applicable 250 Not Applicable Not Applicable 50 Not Applicable
Inert Gas Gaseous Not Applicable Not Applicable Not Limited Not Applicable Not Applicable Not Limited Not Applicable Not Applicable
 
Liquefied
Not Applicable
Not Applicable
Not Limited
Not Applicable
Not Applicable
Not Limited
Not Applicable
Not Applicable
Cryogenic inert
Not Applicable
Not Applicable
Not Applicable
Not Limited
Not Applicable
Not Applicable
Not Limited
Not Applicable
Not Applicable
Organic peroxide Unclassified 1 (1) Not Applicable 0.25 (0.25) Not Applicable 0.25 (0.25)
Detonable
Organic peroxide I 20 (20)
Not Applicable
10 (10)
Not Applicable
2 (2)
II
200
(200)
100
(100)
20
(20)
III
500
(500)
250
(250)
50
(50)
IV
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
V
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Oxidizer 4 2 (2)
Not Applicable
1 (1)
Not Applicable
0.25 (0.25)
3
40
(40)
20
(20)
4
(4)
2
1,000
(1,000)
500
(500)
100
(100)
1
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Oxidizing gas Gaseous Not Applicable Not Applicable 6,000 Not Applicable Not Applicable 1,500 Not Applicable Not Applicable
Liquefied
(600)
Not Applicable
(300)
Not Applicable
Pyrophoric materials Not

Applicable
8 (8) 100 4 (4) 10 0 0
Unstable (reactive) 4 2 (2) 20 1 (1) 2 0.25 (0.25)
3
20
(20)
200
10
(10)
10
1
(1)
2
200
(200)
1,000
100
(100)
250
10
(10)
1
Not Limited
Not Limited
1,500
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Water reactive 3 20 (20) Not Applicable 10 (10) Not Applicable 1 (1)
2
200
(200)
100
(100)
10
(10)
1
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
For SI: 1 pound = 0.454 kg, 1 gallon = 3.785 L, 1 cubic foot = 0.02832 m3.
  1. For gallons of liquids, divide the amount in pounds by 10 in accordance with Section 5003.1.2.
  2. The aggregate quantities in storage and use shall not exceed the quantity listed for storage.
  3. The aggregate quantity of nonflammable solid and nonflammable or noncombustible liquid hazardous materials allowed in outdoor storage per single property under the same ownership or control used for retail or wholesale sales is allowed to exceed the maximum allowable quantity per control area where such storage is in accordance with Section 5003.11.
  4. Quantities in parentheses indicate quantity units in parentheses at the head of each column.
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A HEALTH HAZARD IN AN OUTDOOR CONTROL AREAa, b, c, f
MATERIAL STORAGE USE-CLOSED SYSTEMS USE-OPEN SYSTEMS
Solid pounds Liquid gallons
(pounds)
Gas cubic feet at NTP
(pounds)
Solid pounds Liquid gallons
(pounds)
Gas cubic feet at NTP
(pounds)
Solid pounds Liquid gallons
(pounds)
Corrosives 20,000 2,000 Gaseous 1,620 10,000 1,000 Gaseous 810 1,000 100
Liquefied (300)
Liquefied (150)
Highly toxics 20 (20) Gaseous 40d 10 (10) Gaseous 20d 3 (3)
Liquefied (8)d
Liquefied (4)d
Toxics 1,000 (l,000)e Gaseous 1,620 500 50e Gaseous 810 125 (125)e
Liquefied (300)
Liquefied (150)
For SI:1 cubic foot = 0.02832 m3, 1 pound = 0.454 kg, 1 gallon = 3.785 L, 1 pound per square inch absolute = 6.895 kPa,°C = (°F — 32)/1.8.
  1. For gallons of liquids, divide the amount in pounds by 10 in accordance with Section 5003.1.2.
  2. The aggregate quantities in storage and use shall not exceed the quantity listed for storage.
  3. The aggregate quantity of nonflammable solid and nonflammable or noncombustible liquid hazardous materials allowed in outdoor storage per single property under the same ownership or control used for retail or wholesale sales is allowed to exceed the maximum allowable quantity per control area where such storage is in accordance with Section 5003.11.
  4. Allowed only where used in approved exhausted gas cabinets, exhausted enclosures or under fume hoods.
  5. The maximum allowable quantity per control area for toxic liquids with vapor pressures in excess of 1 psia at 77°F shall be the maximum allowable quantity per control area listed for highly toxic liquids.
  6. Quantities in parentheses indicate quantity units in parentheses at the head of each column.

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