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Virginia Administrative Code
Title 13. Housing
Agency 5. Department Of Housing And Community Development
Chapter 51. Virginia Statewide Fire Prevention Code

13VAC5-51-147.5. IFC Chapter 55 Cryogenic Fluids.

A. Change Sections 5501.1 and 5501.2 to read:

5501.1 Scope. Maintenance and operational aspects of the storage, use and handling of cryogenic fluids shall comply with this chapter and NFPA 55. Cryogenic fluids classified as hazardous materials shall also comply with the general requirements of Chapter 50. Partially full containers containing residual cryogenic fluids shall be considered as full for the purposes of the controls required.


1. Fluids used as refrigerants in refrigeration systems (see Section 606).

2. Liquefied natural gas (LNG), which shall comply with NFPA 59A.

Oxidizing cryogenic fluids, including oxygen, shall comply with Chapter 63, as applicable.

Flammable cryogenic fluids, including hydrogen, methane and carbon monoxide, shall comply with Chapters 23 and 58, as applicable.

Inert cryogenic fluids, including argon, helium and nitrogen, shall comply with ANSI/CGA P-18.

5501.2 Permits. Permits shall be required as set forth in Section 107.2.

B. Change Section 5503.1.2 to read:

5503.1.2 Concrete containers. Barrier materials and membranes used in connection with concrete, but not functioning structurally, shall be compatible with the materials contained.

C. Change Sections 5503.5.2 and 5503.6 to read:

5503.5.2 Securing of containers. Stationary containers shall be secured to foundations in accordance with the applicable building code. Portable containers subject to shifting or upset shall be secured. Nesting shall be an acceptable means of securing containers.

5503.6 Electrical wiring and equipment. Electrical wiring and equipment shall be maintained in accordance with the applicable provisions of NFPA 70, the applicable building code, and Sections 5503.6.1 and 5503.6.2.

D. Change Section 5504.2.1 to read:

5504.2.1 Stationary containers. Stationary containers shall remain in accordance with the applicable building code and comply with the maintenance provisions of this section and those applicable to the type of fluid stored.

E. Change Section 5504.2.1.2 to read:

5504.2.1.2 Indoor storage areas. Cryogenic fluids in stationary containers stored indoors shall be stored in buildings, rooms, or areas constructed for this use in accordance with the applicable building code.

F. Change Sections 5504.2.1.3, 5504.2.2.2, and 5504.2.2.3 to read:

5504.2.1.3 Ventilation. Storage areas for stationary containers shall be ventilated in accordance with the applicable building code.

5504.2.2.2 Indoor storage areas. Cryogenic fluids in portable containers stored indoors shall only be stored in buildings, rooms, or areas constructed for this use in accordance with the applicable building code.

5504.2.2.3 Ventilation. Storage areas for portable containers shall be ventilated in accordance with the applicable building code.

G. Change Sections 5505.4.1 and 5505.4.1.1 to read:

5505.4.1 Dispensing areas. Dispensing of cryogenic fluids with physical or health hazards shall be conducted in approved locations.

5505.4.1.1 Ventilation. Ventilation required by the applicable building code shall be maintained and operated in areas where cryogenic fluids are dispensed.

Exception: Cryogenic fluids that can be demonstrated not to create harmful vapors.

Statutory Authority

§ 27-97 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 30, Issue 16, eff. July 14, 2014; amended, Virginia Register Volume 34, Issue 18, eff. October 16, 2018; Volume 37, Issue 14, eff. July 1, 2021.

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