Chapter 121 - GAS PIPELINES
- Subchapter A - GAS UTILITY DEFINED (§§ 121.001 — 121.008)
- Subchapter B - PUBLIC POLICY (§§ 121.051 — 121.052)
- Subchapter C - DUTIES OF GAS UTILITIES AND PIPELINES (§§ 121.101 — 121.104)
- Subchapter D - REGULATION BY RAILROAD COMMISSION (§§ 121.151 — 121.158)
- Subchapter E - PIPELINE SAFETY (§§ 121.201 — 121.214)
- Subchapter F - GAS SAFETY (§§ 121.251 — 121.253)
- Subchapter G - ENFORCEMENT REMEDIES (§§ 121.301 — 121.310)
- Subchapter H - APPEALS (§§ 121.401 — 121.403)
- Subchapter I - SOUR GAS PIPELINE FACILITIES (§§ 121.451 — 121.454)
- Subchapter J - TESTING OF NATURAL GAS PIPING SYSTEMS IN SCHOOL FACILITIES (§§ 121.5005 — 121.507)