Title 480 - Utilities and Transportation Commission
- Chapter 480-04 - Public access to information and records (§§ 480-04-005 — 480-04-130)
- Chapter 480-07 - Procedural rules (§§ 480-07-010 — 480-07-950)
- Chapter 480-11 - SEPA procedures (§§ 480-11-010 — 480-11-030)
- Chapter 480-12 - Motor carriers (§§ 480-12-100 — 480-12-375)
- Chapter 480-14 - Motor carriers, excluding household goods carriers and common carrier brokers (§§ 480-14-010 — 480-14-999)
- Chapter 480-15 - Household goods carriers (§§ 480-15-010 — 480-15-999)
- Chapter 480-30 - Passenger transportation companies (§§ 480-30-001 — 480-30-999)
- Chapter 480-31 - Private, nonprofit transportation providers (§§ 480-31-010 — 480-31-999)
- Chapter 480-51 - Commercial ferries (§§ 480-51-010 — 480-51-150)
- Chapter 480-54 - ATTACHMENT TO TRANSMISSION FACILITIES (§§ 480-54-010 — 480-54-070)
- Chapter 480-60 - Railroad companies - Clearances (§§ 480-60-010 — 480-60-99001)
- Chapter 480-62 - Railroad companies-Operations (§§ 480-62-125 — 480-62-999)
- Chapter 480-66 - Railroad companies-Sanitation (§§ 480-66-100 — 480-66-620)
- Chapter 480-70 - Solid waste and/or refuse collection companies (§§ 480-70-001 — 480-70-999)
- Chapter 480-73 - Hazardous liquid pipeline companies (§§ 480-73-010 — 480-73-999)
- Chapter 480-75 - Hazardous liquid pipelines-Safety (§§ 480-75-100 — 480-75-999)
- Chapter 480-80 - Utilities general-Tariffs and contracts (§§ 480-80-010 — 480-80-143)
- Chapter 480-85 - Electric and natural gas cost of service (§§ 480-85-010 — 480-85-070)
- Chapter 480-90 - Gas companies-Operations (§§ 480-90-001 — 480-90-999)
- Chapter 480-92 - Low-level radioactive waste (§§ 480-92-011 — 480-92-110)
- Chapter 480-93 - Gas companies-Safety (§§ 480-93-005 — 480-93-999)
- Chapter 480-100 - Electric companies (§§ 480-100-001 — 480-100-999)
- Chapter 480-103 - Community solar companies (§§ 480-103-001 — 480-103-999)
- Chapter 480-106 - Electric companies-Purchases of electricity from qualifying facilities (§§ 480-106-001 — 480-106-080)
- Chapter 480-107 - Electric companies-Purchases of resources (§§ 480-107-001 — 480-107-999)
- Chapter 480-108 - Electric companies-Interconnection with electric generators (§§ 480-108-001 — 480-108-999)
- Chapter 480-109 - Electric companies-Acquisition of minimum quantities of conservation and renewable energy as required by the Energy Independence Act (chapter 19.285 RCW) (§§ 480-109-001 — 480-109-999)
- Chapter 480-110 - Water companies (§§ 480-110-205 — 480-110-999)
- Chapter 480-120 - Telephone companies (§§ 480-120-011 — 480-120-999)
- Chapter 480-121 - Registration and competitive classification of telecommunications companies (§§ 480-121-011 — 480-121-065)
- Chapter 480-122 - Washington telephone assistance program (§§ 480-122-010 — 480-122-080)
- Chapter 480-123 - Universal service (§§ 480-123-010 — 480-123-999)
- Chapter 480-140 - Commission general - Budgets (§§ 480-140-010 — 480-140-180)
- Chapter 480-143 - Commission general - Transfers of property (§§ 480-143-100 — 480-143-210)
- Chapter 480-149 - Tariff Circular No. 6 (§§ 480-149-010 — 480-149-210)
- Chapter 480-160 - PILOTAGE RULES (§§ 480-160-001 — 480-160-160)