[Amended 5-14-2019 by L.L. No. 2-2019]
This article shall apply to the storage, handling, and use of compressed gases and cryogenic liquids as defined herein. Liquefied petroleum gases and compressed gases uses in conjunction with welding or cutting operations are specifically exempt from the provisions of this article.
As used in this article, the following terms shall have the meanings indicated:
COMPRESSED GAS
A. 
A material, or mixture of materials that:
(1) 
Is a gas at 68° F. (20° C.) or less at 14.7 psia (101 kPa) of pressure; and
(2) 
Has a boiling point of 68° F. (20° C.) or less at 14.7 psia (101 kPa) which is either liquefied, nonliquified or in solution, except those gases which have no other health- or physical-hazard properties are not considered to be compressed until the pressure in the packaging exceeds 41 psia (282 kPa) at 68° F. (20° C.).
B. 
The states of a compressed gas are categorized as follows:
(1) 
Nonliquified compressed gases are gases, other than those in solution, which are in packaging under the charged pressure and are entirely gaseous at a temperature of 68° F. (20° C.).
(2) 
Liquified compressed gases are gases that, in a packaging under the charged pressure, are partially liquid at a temperature of 68° F. (20° C.).
(3) 
Compressed gases in solution are nonliquified gases that are dissolved in a solvent.
(4) 
Compressed gas mixture consist of a mixture of two or more compressed gases contained in a packaging, the hazard properties of which are represented by the properties of the mixture as a whole.
CRYOGENIC FLUID
A fluid having a boiling point lower than -130° F. (-89.9° C.) at 14.7 pounds per square inch atmosphere (psia) (an absolute pressure of 101.3 kPa).
A. 
Compressed gas.
(1) 
A permit shall be required for the storage, use or handling at normal temperature and pressure (NTP) of compressed gases in excess of the amounts listed in Table 19-117A.
(a) 
Exception: Vehicles equipped for and using compressed gas as fuel for propelling the vehicle.
(2) 
A permit shall be required where the amount of compressed gases in use or storage exceed the amounts listed in Table 19-117A, to install, repair damage to, abandon, remove, place temporarily out of service, close or substantially modify a compressed gas system.
(a) 
Exceptions:
[1] 
Routine maintenance.
[2] 
For emergency repair work performed on an emergency basis, application for a permit shall be made within two working days of the commencement of work.
Table 19-117A
Permit Amounts for Compressed Gases
Type of Gas
Amount (Cubic feet at NTP)
Corrosive
200
Flammable (except cryogenic fluids and liquified petroleum gases)
200
Highly toxic
Any amount
Inert and simple asphyxiant
6,000
Oxidizing (including ormen)
504
Pyrophoric
Any amount
Toxic
Any amount
B. 
Carbon dioxide systems used in beverage dispensing applications. A permit shall be required for carbon dioxide systems used in beverage dispensing applications having more than 100 pounds of carbon dioxide.
C. 
Cryogenic fluids.
(1) 
A permit shall be required to produce, store, transport on site, use, handle or dispense cryogenic fluids in excess of the amounts listed in Table 19-117B.
(a) 
Exception: Permits are not required for vehicles equipped for and using cryogenic fluids as a fuel for propelling the vehicle or for refrigerating the lading.
(2) 
A permit shall be required for installation of or alteration to outdoor stationary cryogenic fluid storage systems where the system capacity exceeds the amounts listed in Table 19-117B. Maintenance performed in accordance with the Fire Code of New York State is not considered to be an alteration and does not require a permit.
Table 19-117B
Permit Amounts For Cryogenic Fluids
Type of Cryogenic Fluid
Inside Buildings (gallons)
Outside Buildings (gallons)
Flammable
More than 1
60
Inert
60
500
Oxidizing (includes oxygen)
10
50
Physical or health hazard not indicated above
Any amount
Any amount