Division 25 - Departmental
- Chapter 25-4 - TELEPHONE COMPANIES (§§ 25-4.002 — 25-4.520)
- Chapter 25-6 - ELECTRIC SERVICE BY ELECTRIC PUBLIC UTILITIES (§§ 25-6.002 — 25-6.140)
- Chapter 25-7 - GAS SERVICE BY GAS PUBLIC UTILITIES (§§ 25-7.003 — 25-7.140)
- Chapter 25-8 - APPLICATION FOR AUTHORITY TO ISSUE AND SELL SECURITIES (§§ 25-8.001 — 25-8.010)
- Chapter 25-9 - CONSTRUCTION AND FILING OF TARIFFS BY PUBLIC UTILITIES (§§ 25-9.001 — 25-9.071)
- Chapter 25-10 - WATER AND SEWER SYSTEMS (§§ 25-10.026 — 25-10.111)
- Chapter 25-12 - SAFETY OF GAS TRANSPORTATION BY PIPELINE (§§ 25-12.004 — 25-12.0861)
- Chapter 25-14 - LIMITATION ON RATES, CHARGES AND TARIFFS (§§ 25-14.001 — 25-14.014)
- Chapter 25-17 - CONSERVATION (§§ 25-17.001 — 25-17.310)
- Chapter 25-18 - UTILITY AND COMMUNICATIONS POLES (§§ 25-18.010 — 25-18.020)
- Chapter 25-21 - RULES GOVERNING INTERNAL ORGANIZATION AND OPERATION (§ 25-21.050)
- Chapter 25-22 - RULES GOVERNING PRACTICE AND PROCEDURE (§§ 25-22.001 — 25-22.108)
- Chapter 25-24 - TELEPHONE COMPANIES (§§ 25-24.455 — 25-24.935)
- Chapter 25-25 - [Repealed] (§§ 25-25.001 — 25-25.030)
- Chapter 25-30 - WATER AND WASTEWATER UTILITY RULES (§§ 25-30.010 — 25-30.585)
- Chapter 25-40 - EXCEPTIONS TO THE UNIFORM RULES OF PROCEDURE (§ 25-40.001)