Codes, Standards, and Compliance Flashcards

Under 49 CFR Part 192, who has primary regulatory authority over natural gas pipeline safety leading up to a CNG fueling station?

Answer: PHMSA

PHMSA (Pipeline and Hazardous Materials Safety Administration) regulates natural gas pipeline safety under 49 CFR Part 192.

Which SAE standard covers the CNG vehicle receptacle (fueling connection) used in North America?

Answer: SAE J1616

SAE J1616 specifies the recommended practice for compressed natural gas vehicle fueling connection devices.

An operator discovers a CNG dispenser hose with visible outer jacket damage. Under NFPA 52, the correct action is to:

Answer: Tag it out of service and replace it immediately

NFPA 52 requires that damaged fueling hoses be immediately removed from service to prevent a hazardous failure.

What is the minimum separation distance NFPA 52 requires between a CNG fueling island and a property line?

Answer: 10 feet

NFPA 52 requires a minimum 10-foot separation between CNG fueling islands and property lines or adjacent structures.

Under EPA regulations, which CNG fueling stations must conduct a risk management plan (RMP)?

Answer: Stations exceeding the Clean Air Act Section 112(r) threshold quantity for flammable gases

EPA's RMP rule (40 CFR Part 68) applies to facilities that hold regulated substances above threshold quantities per Clean Air Act Section 112(r).

NFPA 52 requires that CNG compression equipment be located at least how far from any building opening or air intake?

Answer: 10 feet

NFPA 52 specifies a 10-foot minimum distance from CNG compression equipment to building openings and air intakes to prevent gas accumulation inside.

Which standard governs the design and construction of CNG pressure vessels used in stationary storage at fueling stations?

Answer: ASME Boiler and Pressure Vessel Code Section VIII

Stationary CNG storage vessels must be constructed per ASME BPVC Section VIII, Division 1 or Division 3 for high-pressure applications.