Subpart 1 - Natural Gas and Coal
- Chapter 1 - Natural Gas and Coal (§§ XI-101 — XI-143)
- Chapter 3 - Applications (§§ XI-301 — XI-331)
- Chapter 5 - Requirements (§§ XI-501 — XI-517)
- Chapter 7 - Interstate Coal Slurry Transportation Rates (§§ XI-701 — XI-707)
- Chapter 9 - Coal Slurry Water Usage and Disposal (§§ XI-901 — XI-915)
- Chapter 11 - Transportation, Usage, and Allocations (§§ XI-1101 — XI-1109)
- Chapter 13 - Design Requirements for Carbon Dioxide Pipelines (§§ XI-1301 — XI-1341)