A compressed natural gas (CNG) motor vehicle fueling facility must meet which standard?

The correct standard for a compressed natural gas (CNG) motor vehicle fueling facility is NFPA 52. This standard is specifically focused on the storage, transportation, and dispensing of CNG, outlining the necessary safety requirements and guidelines to ensure safe operations at fueling facilities. It covers aspects such as installation, maintenance, and general safety practices related to CNG systems.

In contrast, NFPA 50 deals with the storage and handling of liquefied gases, while NFPA 51 focuses on the requirements for the storage and handling of gases that are used in welding and cutting operations. NFPA 53 addresses the safety of systems using gases under pressure in various applications. Therefore, NFPA 52 is the most relevant standard for CNG fueling facilities as it directly pertains to natural gas.