60.4.2.1.8 Residential Occupancies

The MAQ of hazardous materials per control area in residential occupancies, including lodging and rooming houses, hotels, dormitories, apartments, and residential board and care facilities, shall be as specified in Table 60.4.2.1.8. [400:5.2.1.8]

Table 60.4.2.1.8 Maximum Allowable Quantities of Hazardous Materials per Control Area in Residential Occupancies Consisting of Lodging and Rooming Houses, Hotels, Dormitories, Apartments, and Residential Board and Care Facilities

Material	Class	Solid	Liquidl	Gasa (at NTP)
Flammable and combustible liquidb,c	See note	See note	See note	See note
Cryogenic fluid	Flammable	N/A	10	N/A
	Oxidizing	N/A	10	N/A
Explosivesd,e,f,g	See note	See note	See note	See note
Flammable gasc,h	Gaseous	N/A	N/A	NP
	Liquefiedj	N/A	N/A	(20)
	Liquefied Petroleum	N/A	N/A	(20)
Flammable solid	N/A	5 lb	N/A	N/A
Oxidizers	4	NP	NP	N/A
	3	10i	1i	N/A
	2	250	25	N/A
	1	4000	400	N/A
Oxidizing gash	Gaseous	N/A	N/A	NPh
	Liquefied	N/A	NL	N/A
Organic peroxides	I	NP	NP	N/A
	II	NP	NP	N/A
	III	25	(25)	N/A
	IV	NL	NL	N/A
	V	NL	NL	N/A
Pyrophoric materials	N/A	1	(1)	NP
Unstable reactives	4	1/4	(1/4)	NP
	3	1	(1)	NP
	2	10	(10)	NPh
	1	NL	NL	NP
Water-reactive	3	1	(1)	N/A
	2	10	(10)	N/A
	1	NL	NL	N/A
Corrosives	N/A	1000	100	NP
Highly toxic	N/A	3	(3)	NPk
Toxic	N/A	125	(125)	NPk

For SI units, 1 lb = 0.454 kg; 1 gal = 3.785 L; 1 ft³ = 0.0283 m³.

NTP: Normal temperature and pressure [measured at 70°F (21°C) and 14.7 psi (101 kPa)]. N/A: Not applicable. NP: Not permitted. NL: Not limited.

Note: The hazardous material categories and MAQs that are shaded in this table are not regulated by Chapter 60 or NFPA 400 but are provided here for informational purposes. See Chapter 2 of NFPA 400 for the reference code or standard governing these materials and establishing the MAQs. In accordance with 1.1.1.2 of NFPA 400, materials having multiple hazards that fall within the scope of NFPA 400 shall comply with NFPA 400.

^aUnlimited amounts of gas are permitted to be used for personal medical or emergency medical use.

^bStorage in excess of 10 gal (38 L) of Class I and Class II liquids combined or 60 gal (227 L) of Class IIIA liquids are permitted where stored in safety cabinets with an aggregate quantity not to exceed 180 gal (681 L).

^cFuel in the tank of operating mobile equipment is permitted to exceed the specified quantity where the equipment is operated in accordance with this Code.

^dThe use of explosive materials required by federal, state, or municipal agencies while engaged in normal or emergency performance of duties is not required to be limited. The storage of explosive materials is required to be in accordance with the requirements of NFPA 495.

^eThe storage and use of explosive materials in medicines and medicinal agents in the forms prescribed by the official United States Pharmacopeia or the National Formulary are not required to be limited.

^fThe storage and use of propellant-actuated devices or propellant-actuated industrial tools manufactured, imported, or distributed for their intended purposes are required to be limited to 50 lb (23 kg) net explosive weight.

^gThe storage and use of small arms ammunition, and components thereof, are permitted where in accordance with NFPA 495.

^hContainers, cylinders, or tanks not exceeding 250 scf (7.1 m³) content measured at 70°F (21°C) and 14.7 psi (101 kPa) and used for maintenance purposes, patient care, or operation of equipment shall be permitted.

ⁱA maximum quantity of 220 lb (99 kg) of solid or 22 gal (83 L) of liquid Class 3 oxidizer is permitted where such materials are necessary for maintenance purposes, operation, or sanitation of equipment. Storage containers and the manner of storage are required to be approved.

^jStorage containers are not permitted to exceed 0.325 ft³ (0.0092 m³) capacity.

^kGas cylinders not exceeding 20 scf 0.57 m³) measured at 70°F (21°C) and 14.7 psi (101 kPa) are permitted in gas cabinets or fume hoods.

^lConversion. Where quantities are indicated in pounds and when the weight per gallon of the liquid is not provided to the AHJ, a conversion factor of 10 lb/gal (1.2 kg/L) shall be used.

^mMedicines, foodstuffs, cosmetics, and other consumer products that contain not more than 50% by volume water-miscible flammable or combustible liquids, with the remainder of the product consisting of components that do not burn, shall not be limited, where packaged in individual containers that do not exceed a 1.3-gallon capacity. [30:9.1.4.(4)]

[400: Table 5.2.1.8]