49 CFR 192.51 : Transportation (§ 1.1 To Parts 1581-1699) — (§ 178.1 To § 199.245) — Other Regulations Relating To Transportation (Continued) (§ 178.1 To § 199.245) — Pipeline And Hazardous Materials Safety Administration, Department Of Transportation (Continued) (§ 178.1 To § 199.245) — Pipeline Safety (Parts 186-189 To § 199.245) — Transportation Of Natural And Other Gas By Pipeline: Minimum Federal Safety Standards (§ 192.1 To Appendix E To Part 192) — Materials (§ 192.51 To § 192.65) — Scope.