Subchapter D - PIPELINE SAFETY
- Part 190 - PIPELINE SAFETY ENFORCEMENT AND REGULATORY PROCEDURES (§§ 190.1 — 190.411)
- Part 191 - TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE; ANNUAL, INCIDENT, AND OTHER REPORTING (§§ 191 — 191.29)
- Part 192 - TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS (§§ 192.1 — 192)
- Part 193 - LIQUEFIED NATURAL GAS FACILITIES: FEDERAL SAFETY STANDARDS (§§ 193.2001 — 193.2917)
- Part 194 - RESPONSE PLANS FOR ONSHORE OIL PIPELINES (§§ 194.1 — 194)
- Part 195 - TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE (§§ 195.0 — 195)
- Part 196 - PROTECTION OF UNDERGROUND PIPELINES FROM EXCAVATION ACTIVITY (§§ 196.1 — 196.211)
- Part 198 - REGULATIONS FOR GRANTS TO AID STATE PIPELINE SAFETY PROGRAMS (§§ 198.1 — 198.63)
- Part 199 - DRUG AND ALCOHOL TESTING (§§ 199.1 — 199.245)