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Pipeline and Hazardous Materials Safety Administration (PHMSA)Office of Pipeline Safety (OPS)PHMSA issues and enforces the Pipeline Safety Regulations, 49 CFR Parts 190-199, implementing the Federal Pipeline Safety Law, 49 USC § 60101 et seq ., to ensure the safety of interstate and intrastate pipelines transporting hazardous liquids, natural gas, and other flammable, corrosive and toxic gases. Part 192 of the Pipeline Safety Regulations regulates the transportation of natural gas and other gases in pipelines, including hydrogen, which is transported as a compressed flammable gas. In addition to regulating gathering and transmission, PHMSA regulates the distribution or storage of hydrogen gas by pipeline (49 CFR § 192.3). States may enforce safety standards on intrastate pipelines if the State has been certified by PHMSA under 49 USC § 60105.
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