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Control areas shall comply with Sections 414.2.1 through 414.2.5 and the International Fire Code.
Exception: Higher education laboratories in accordance with Section 428 and Chapter 38 of the International Fire Code.
[F] 414.2.1 Construction Requirements
Control areas shall be separated from each other by fire barriers constructed in accordance with Section 707 or horizontal assemblies constructed in accordance with Section 711, or both.
[F] 414.2.2 Percentage of Maximum Allowable Quantities
The percentage of maximum allowable quantities of hazardous materials per control area permitted at each floor level within a building shall be in accordance with Table 414.2.2.
[F] TABLE 414.2.2
DESIGN AND NUMBER OF CONTROL AREAS
STORY PERCENTAGE OF THE MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREAa NUMBER OF CONTROL AREAS PER STORY FIRE-RESISTANCE RATING FOR FIRE BARRIERS IN HOURSb
Above grade plane Higher than 9 5 1 2
7—9 5 2 2
6 12.5 2 2
5 12.5 2 2
4 12.5 2 2
3 50 2 1
2 75 3 1
1 100 4 1
Below grade plane 1 75 3 1
2 50 2 1
Lower than 2 Not Allowed Not Allowed Not Allowed
  1. Percentages shall be of the maximum allowable quantity per control area shown in Tables 307.1(1) and 307.1(2), with all increases allowed in the notes to those tables.
  2. Separation shall include fire barriers and horizontal assemblies as necessary to provide separation from other portions of the building.
[F] 414.2.3 Number
The maximum number of control areas within a building shall be in accordance with Table 414.2.2. For the purposes of determining the number of control areas within a building, each portion of a building separated by one or more fire walls complying with Section 706 shall be considered a separate building.
[F] 414.2.4 Fire-Resistance Rating Requirements
The required fire-resistance rating for fire barriers shall be in accordance with Table 414.2.2. The floor assembly of the control area and the construction supporting the floor of the control area shall have a fire-resistance rating of not less than 2 hours.
Exception: The floor assembly of the control area and the construction supporting the floor of the control area are allowed to be 1-hour fire-resistance-rated in buildings of Types IIA, IIIA, IV and VA construction, provided that both of the following conditions exist:
  1. The building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.
  2. The building is three or fewer stories above grade plane.
[F] 414.2.5 Hazardous Material in Group M Display and Storage Areas and in Group S Storage Areas
Hazardous materials located in Group M and Group S occupancies shall be in accordance with Sections 414.2.5.1 through 414.2.5.3.
[F] TABLE 414.2.5(1)
MAXIMUM ALLOWABLE QUANTITY PER INDOOR AND OUTDOOR CONTROL AREA IN GROUP M AND S OCCUPANCIES OF NONFLAMMABLE SOLIDS AND NONFLAMMABLE AND NONCOMBUSTIBLE LIQUIDSd, e, f
CONDITION MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA
Materiala Class Solids (pounds) Liquids (gallons)
A. Health-hazard materials—nonflammable and noncombustible solids and liquids
1. Corrosivesb, c Not Applicable 9,750 975
2. Highly toxics Not Applicable 20b, c 2b, c
3. Toxicsb, c Not Applicable 1,000k 100
B. Physical-hazard materials—nonflammable and noncombustible solids and liquids
1. Oxidizersb, c 4 Not Allowed Not Allowed
3 1,350g 115
2 2,250h 225
1 18,000i, j 1,800i, j
2. Unstable (reactives)b, c 4 Not Allowed Not Allowed
3 550 55
2 1,150 115
1 Not Limited Not Limited
3. Water reactives 3b, c 550 55
2b, c 1,150 115
1 Not Limited Not Limited
For SI: 1 pound = 0.454 kg, 1 gallon = 3.785 L.
  1. Hazard categories are as specified in the International Fire Code.
  2. Maximum allowable quantities shall be increased 100 percent in buildings that are sprinklered in accordance with Section 903.3.1.1. Where Note c also applies, the increase for both notes shall be applied accumulatively.
  3. Maximum allowable quantities shall be increased 100 percent where stored in approved storage cabinets, in accordance with the International Fire Code. Where Note b also applies, the increase for both notes shall be applied accumulatively.
  4. See Table 414.2.2 for design and number of control areas.
  5. Allowable quantities for other hazardous material categories shall be in accordance with Section 307.
  6. Maximum quantities shall be increased 100 percent in outdoor control areas.
  7. Maximum amounts shall be increased to 2,250 pounds where individual packages are in the original sealed containers from the manufacturer or packager and do not exceed 10 pounds each.
  8. Maximum amounts shall be increased to 4,500 pounds where individual packages are in the original sealed containers from the manufacturer or packager and do not exceed 10 pounds each.
  9. The permitted quantities shall not be limited in a building equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.
  10. Quantities are unlimited in an outdoor control area.
  11. Maximum allowable quantities of consumer products shall be increased to 10,000 pounds where individual packages are in the original, sealed containers from the manufacturer and the toxic classification is exclusively based on the LC threshold and no other hazardous materials classifications apply.
 
[F] TABLE 414.2.5(2)
MAXIMUM ALLOWABLE QUANTITY OF FLAMMABLE AND COMBUSTIBLE LIQUIDS IN WHOLESALE AND RETAIL SALES OCCUPANCIES PER CONTROL AREAa
TYPE OF LIQUID MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA (gallons)
Sprinklered in accordance with Note b densities and arrangements Sprinklered in accordance with Tables 5704.3.6.3(4) through 5704.3.6.3(8) and 5704.3.7.5.1 of the International Fire Code Nonsprinklered
Class IA 60 60 30
Class IB, IC, II and IIIA 7,500c 15,000c 1,600
Class IIIB Unlimited Unlimited 13,200
For SI: 1 foot = 304.8 mm, 1 square foot = 0.0929 m2, 1 gallon = 3.785 L, 1 gallon per minute per square foot = 40.75 L/min/m2.
  1. Control areas shall be separated from each other by not less than a 1-hour fire barrier wall.
  2. To be considered as sprinklered, a building shall be equipped throughout with an approved automatic sprinkler system with a design providing minimum densities as follows:
    1. For uncartoned commodities on shelves 6 feet or less in height where the ceiling height does not exceed 18 feet, quantities are those permitted with a minimum sprinkler design density of Ordinary Hazard Group 2.
    2. For cartoned, palletized or racked commodities where storage is 4 feet 6 inches or less in height and where the ceiling height does not exceed 18 feet, quantities are those permitted with a minimum sprinkler design density of 0.21 gallon per minute per square foot over the most remote 1,500-square-foot area.
  3. Where wholesale and retail sales or storage areas exceed 50,000 square feet in area, the maximum allowable quantities are allowed to be increased by 2 percent for each 1,000 square feet of area in excess of 50,000 square feet, up to not more than 100 percent of the table amounts. A control area separation is not required. The cumulative amounts, including amounts attained by having an additional control area, shall not exceed 30,000 gallons.
[F] 414.2.5.1 Nonflammable Solids and Nonflammable and Noncombustible Liquids
The aggregate quantity of nonflammable solid and nonflammable or noncombustible liquid hazardous materials permitted within a single control area of a Group M display and storage area, a Group S storage area or an outdoor control area is permitted to exceed the maximum allowable quantities per control area specified in Tables 307.1(1) and 307.1(2) without classifying the building or use as a Group H occupancy, provided that the materials are displayed and stored in accordance with the International Fire Code and quantities do not exceed the maximum allowable specified in Table 414.2.5(1).
[F] 414.2.5.2 Flammable and Combustible Liquids
In Group M occupancy wholesale and retail sales uses, indoor storage of flammable and combustible liquids shall not exceed the maximum allowable quantities per control area as indicated in Table 414.2.5(2), provided that the materials are displayed and stored in accordance with the International Fire Code.
[F] 414.2.5.3 Aerosol Products, Aerosol Cooking Spray Products or Plastic Aerosol 3 Products
The maximum quantity of aerosol products, aerosol cooking spray products or plastic aerosol 3 products in Group M occupancy retail display areas, storage areas adjacent to retail display areas and retail storage areas shall be in accordance with the International Fire Code.

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