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    PHMSA Home
    Home  »  Pipeline Safety Community  »  Regulations  »  Rulemaking  »  Rulemaking Archives

    OPS-25

    Transportation of Natural and other gas and liquids by Pipeline; Welding Requirements

    Publish Date Status Effective Date
    		 Federal Register Citation
    Mar 5, 1975 Final Rule Mar 5, 1975   40 FR 10181 (40 FR 10181)
    Jul 30, 1974 NPRM   39 FR 27589 (39 FR 27589)
    Apr 22, 1974 NPRM   39 FR 14220 (39 FR 14220)
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