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  • § 385.403
    Who must hold a safety permit?
  • § 385.415
    What operational requirements apply to the transportation of a hazardous material for which a permit is required?

Part 385

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Guidance for § 385.403: Who must hold a safety permit?

Question 1: Is transportation of compressed natural gas (CNG) in a non-liquefied state subject to the HMSP requirements?

Guidance: Although CNG is classified as a Division 2.1 hazardous material, it is not “compressed or refrigerated liquid methane or liquefied gas with a methane content of at least 85 percent” as described in 49 CFR 385.403(f). Therefore, the transportation of this material does not require a HMSP.


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