- 49 CFR Part 192 Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards
- 49 CFR Part 195 Transportation of Hazardous Liquids by Pipeline
- 49 CFR Part 40 Procedures for Transportation Workplace Drug and Alcohol Testing Programs
- 49 CFR Part 190 Pipeline Safety Enforcement and Regulatory Procedures
- 49 CFR Part 191 Transportation of Natural and Other Gas by Pipeline; Annual, Incident, and Other Reporting
- 49 CFR Part 194 Response Plans for Onshore Oil Pipelines
- 49 CFR Part 196 Protection of Underground Pipelines from Excavation Activity
- 49 CFR Part 199 Drug and Alcohol Testing
Compiled from the Electronic Code of Federal Regulations (eCFR), an editorial compilation and not an official legal edition of the CFR. The official text is the Federal Register and the annual CFR edition.