- (a) CNG fuel supply cylinders shall have a rated service pressure of not less than 3,000 psig at 70 degrees Fahrenheit. Cascade storage cylinders shall have a rated service pressure of not less than 3,600 psig at 70 degrees Fahrenheit.
- (b) Hydrogen fuel supply cylinders must comply with the ASME Boiler and Pressure Vessel Code, Section VIII, and NFPA 2 unless the Chief Boiler Inspector determines that pressure vessels meeting a different standard will operate at an equivalent level of safety.
- (c) Field welding or brazing for the repair or alteration of a cylinder or ASME pressure vessel may only be done by repair companies holding the required Certificate of Authorization from ASME or The National Board of Boiler and Pressure Vessel Inspectors, or in accordance with OAC 380:25-13-3.
Added at 32 Ok Reg 735, eff 6-30-15 (emergency)
Added at 33 Ok Reg 1735, eff 9-15-16
Amended at 40 Ok Reg 2307, eff 9-15-23