Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)

Chapter 173-03 - Public records (§§ 173-03-010 — 173-03-100)
Chapter 173-04 - Practice and procedure (Repealed) (§§ 173-04-010 — 173-04-020)
Chapter 173-06 - Delegation of powers (§§ 173-06-050 — 173-06-130)
Chapter 173-15 - Permits for oil or natural gas exploration activities conducted from state marine waters (§§ 173-15-010 — 173-15-030)
Chapter 173-18 - Shoreline Management Act - Streams and rivers constituting shorelines of the state (§§ 173-18-010 — 173-18-430)
Chapter 173-20 - Shoreline Management Act - Lakes constituting shorelines of the state (§§ 173-20-010 — 173-20-820)
Chapter 173-22 - Adoption of designations of shorelands and wetlands associated with shorelines of the state (§§ 173-22-010 — 173-22-070)
Chapter 173-24 - Tax exemptions and credits for pollution control facilities (§§ 173-24-010 — 173-24-150)
Chapter 173-26 - State master program approval/amendment procedures and master program guidelines (§§ 173-26-010 — 173-26-360)
Chapter 173-27 - Shoreline management permit and enforcement procedures (§§ 173-27-010 — 173-27-990)
Chapter 173-40 - Pollution disclosure (§§ 173-40-010 — 173-40-050)
Chapter 173-44 - Fees - Radioactive waste management facilities (§§ 173-44-010 — 173-44-070)
Chapter 173-50 - Accreditation of environmental laboratories (§§ 173-50-010 — 173-50-220)
Chapter 173-58 - Sound level measurement procedures (§§ 173-58-010 — 173-58-090)
Chapter 173-60 - Maximum environmental noise levels (§§ 173-60-010 — 173-60-120)
Chapter 173-62 - Motor vehicle noise performance standards (§§ 173-62-010 — 173-62-070)
Chapter 173-80 - Limitations on use of Referendum 39 grant funds for water pollution abatement (§§ 173-80-010 — 173-80-080)
Chapter 173-95A - Uses and limitations of the centennial clean water program (§§ 173-95A-010 — 173-95A-820)
Chapter 173-98 - Uses and limitations of the water pollution control revolving fund (§§ 173-98-010 — 173-98-970)
Chapter 173-100 - Groundwater management areas and programs (§§ 173-100-010 — 173-100-160)
Chapter 173-124 - Quincy groundwater management subarea and zones (§§ 173-124-010 — 173-124-080)
Chapter 173-128A - Odessa groundwater management subarea (§§ 173-128A-010 — 173-128A-060)
Chapter 173-130A - Odessa groundwater subarea management policy (§§ 173-130A-010 — 173-130A-220)
Chapter 173-132 - Duck Lake groundwater management subarea (§§ 173-132-010 — 173-132-060)
Chapter 173-134A - Quincy groundwater subarea management policy (§§ 173-134A-010 — 173-134A-170)
Chapter 173-136 - The establishment of a system of authorizing the withdrawal of artificially stored groundwaters embodied in an approved declaration under RCW 90.44.130, which are commingled with public groundwaters in groundwater areas, subareas, and zones established under RCW 90.44.130 (§§ 173-136-010 — 173-136-110)
Chapter 173-145 - Administration of the flood control assistance account program (§§ 173-145-010 — 173-145-155)
Chapter 173-150 - Protection of withdrawal facilities associated with groundwater rights (§§ 173-150-010 — 173-150-140)
Chapter 173-152 - Water rights (§§ 173-152-010 — 173-152-060)
Chapter 173-153 - Water conservancy boards (§§ 173-153-010 — 173-153-200)
Chapter 173-154 - Protection of upper aquifer zones (§§ 173-154-010 — 173-154-110)
Chapter 173-157 - Underground artificial storage and recovery (§§ 173-157-010 — 173-157-230)
Chapter 173-158 - Flood plain management (§§ 173-158-010 — 173-158-120)
Chapter 173-160 - Minimum standards for construction and maintenance of wells (§§ 173-160-010 — 173-160-990)
Chapter 173-162 - Regulation and licensing of well contractors and operators (§§ 173-162-010 — 173-162-220)
Chapter 173-165 - Certified water right examiners (§§ 173-165-010 — 173-165-130)
Chapter 173-166 - Emergency drought relief (§§ 173-166-010 — 173-166-140)
Chapter 173-170 - Agricultural water supply facilities (§§ 173-170-010 — 173-170-120)
Chapter 173-173 - Requirements for measuring and reporting water use (§§ 173-173-010 — 173-173-220)
Chapter 173-175 - Dam safety (§§ 173-175-010 — 173-175-795)
Chapter 173-180 - Facility oil handling standards (§§ 173-180-010 — 173-180-910)
Chapter 173-182 - Oil spill contingency plan (§§ 173-182-010 — 173-182-930)
Chapter 173-183 - Preassessment screening and oil spill compensation schedule regulations (§§ 173-183-010 — 173-183-920)
Chapter 173-184 - Vessel oil transfer advance notice and containment requirements (§§ 173-184-010 — 173-184-130)
Chapter 173-185 - Oil movement by rail and pipeline notification (§§ 173-185-010 — 173-185-110)
Chapter 173-186 - Oil spill contingency plan-Railroad (§§ 173-186-010 — 173-186-900)
Chapter 173-187 - Financial responsibility (§§ 173-187-010 — 173-187-300)
Chapter 173-200 - Water quality standards for groundwaters of the state of Washington (§§ 173-200-010 — 173-200-100)
Chapter 173-201A - Water quality standards for surface waters of the state of Washington (§§ 173-201A-010 — 173-201A-612)
Chapter 173-204 - Sediment management standards (§§ 173-204-100 — 173-204-620)
Chapter 173-205 - Whole effluent toxicity testing and limits (§§ 173-205-010 — 173-205-130)
Chapter 173-208 - Grant of authority sewerage systems (§§ 173-208-010 — 173-208-120)
Chapter 173-216 - State waste discharge permit program (§§ 173-216-010 — 173-216-150)
Chapter 173-218 - Underground injection control program (§§ 173-218-010 — 173-218-130)
Chapter 173-219 - RECLAIMED WATER (§§ 173-219-010 — 173-219-390)
Chapter 173-220 - National Pollutant Discharge Elimination System permit program (§§ 173-220-010 — 173-220-240)
Chapter 173-221 - Discharge standards and effluent limitations for domestic wastewater facilities (§§ 173-221-010 — 173-221-100)
Chapter 173-221A - Wastewater discharge standards and effluent limitations (§§ 173-221A-010 — 173-221A-150)
Chapter 173-224 - Water quality permit fees (§§ 173-224-015 — 173-224-110)
Chapter 173-225 - Federal Water Pollution Control Act - Establishment of implementation procedures of application for certification (§§ 173-225-010 — 173-225-030)
Chapter 173-226 - Waste discharge general permit program (§§ 173-226-010 — 173-226-250)
Chapter 173-228 - VESSEL SEWAGE NO DISCHARGE ZONES (§§ 173-228-010 — 173-228-060)
Chapter 173-230 - Certification of operators of wastewater treatment plants (§§ 173-230-010 — 173-230-380)
Chapter 173-240 - Submission of plans and reports for construction of wastewater facilities (§§ 173-240-010 — 173-240-180)
Chapter 173-245 - Submission of plans and reports for construction and operation of combined sewer overflow reduction facilities (§§ 173-245-010 — 173-245-090)
Chapter 173-255 - Limitations on use of Referendum 26 grant funds for water pollution abatement (§§ 173-255-010 — 173-255-060)
Chapter 173-270 - Puget Sound highway runoff program (§§ 173-270-010 — 173-270-100)
Chapter 173-300 - Certification of operators of solid waste incinerator and landfill facilities (§§ 173-300-010 — 173-300-180)
Chapter 173-303 - Dangerous waste regulations (§§ 173-303-010 — 173-303-9907)
Chapter 173-304 - Minimum functional standards for solid waste handling (§§ 173-304-010 — 173-304-9901)
Chapter 173-305 - Hazardous waste fee regulation (§§ 173-305-010 — 173-305-240)
Chapter 173-306 - Special incinerator ash management standards (§§ 173-306-010 — 173-306-9901)
Chapter 173-307 - Pollution prevention plans (§§ 173-307-010 — 173-307-140)
Chapter 173-308 - Biosolids management (§§ 173-308-005 — 173-308-90005)
Chapter 173-310 - Litter receptacles (§§ 173-310-010 — 173-310-990)
Chapter 173-331 - Vehicle battery recycling (§§ 173-331-010 — 173-331-600)
Chapter 173-333 - Persistent bioaccumulative toxins (§§ 173-333-100 — 173-333-430)
Chapter 173-334 - Children's safe products-Reporting rule (§§ 173-334-010 — 173-334-130)
Chapter 173-337 - Safer products restrictions and reporting (§§ 173-337-010 — 173-337-114)
Chapter 173-340 - Model Toxics Control Act-Cleanup (§§ 173-340-100 — 173-340-900)
Chapter 173-342 - Additional taxable hazardous substance list (§§ 173-342-010 — 173-342-050)
Chapter 173-345 - Recyclable materials - transporter and facility requirements (§§ 173-345-010 — 173-345-100)
Chapter 173-350 - Solid waste handling standards (§§ 173-350-010 — 173-350-990)
Chapter 173-351 - Criteria for municipal solid waste landfills (§§ 173-351-010 — 173-351-990)
Chapter 173-360A - Underground storage tank regulations (§§ 173-360A-0100 — 173-360A-1089)
Chapter 173-400 - General regulations for air pollution sources (§§ 173-400-010 — 173-400-930)
Chapter 173-401 - Operating permit regulation (§§ 173-401-100 — 173-401-940)
Chapter 173-405 - Kraft pulping mills (§§ 173-405-012 — 173-405-091)
Chapter 173-406 - Acid rain regulation (§§ 173-406-100 — 173-406-950)
Chapter 173-407 - GREENHOUSE GAS MITIGATION REQUIREMENTS AND EMISSIONS PERFORMANCE STANDARD FOR POWER PLANTS (§§ 173-407-005 — 173-407-400)
Chapter 173-408 - Landfill Methane Emissions (§§ 173-408-010 — 173-408-990)
Chapter 173-410 - Sulfite pulping mills (§§ 173-410-012 — 173-410-100)
Chapter 173-415 - Primary aluminum plants (§§ 173-415-010 — 173-415-075)
Chapter 173-420 - Conformity of transportation activities to air quality implementation plans (§§ 173-420-010 — 173-420-120)
Chapter 173-421 - Motor vehicle emission control systems (§§ 173-421-010 — 173-421-100)
Chapter 173-422 - [Repealed] (§§ 173-422-010 — 173-422-195)
Chapter 173-422A - [Repealed] (§§ 173-422A-010 — 173-422A-500)
Chapter 173-423 - Clean vehicles program (§§ 173-423-010 — 173-423-150)
Chapter 173-424 - Clean fuels program rule (§§ 173-424-100 — 173-424-900)
Chapter 173-425 - Outdoor burning (§§ 173-425-010 — 173-425-080)
Chapter 173-430 - Agricultural burning (§§ 173-430-010 — 173-430-100)
Chapter 173-433 - Solid fuel burning devices (§§ 173-433-010 — 173-433-200)
Chapter 173-434 - Solid waste incinerator facilities (§§ 173-434-010 — 173-434-210)
Chapter 173-435 - Emergency episode plan (§§ 173-435-010 — 173-435-070)
Chapter 173-441 - Reporting of emissions of greenhouse gases (§§ 173-441-010 — 173-441-150)
Chapter 173-442 - [Repealed] (§§ 173-442-010 — 173-442-370)
Chapter 173-443 - Hydrofluorocarbons (HFCs) and other fluorinated greenhouse gases (§§ 173-443-010 — 173-443-265)
Chapter 173-444 - Clean energy transformation rule (§§ 173-444-010 — 173-444-090)
Chapter 173-446 - Climate Commitment Act program rule (§§ 173-446-010 — 173-446-700)
Chapter 173-446A (§§ 173-446A-010 — 173-446A-050)
Chapter 173-450 - Establishing requirements for the receipt of financial aid (§§ 173-450-010 — 173-450-100)
Chapter 173-312 - Local Solid Waste Financial Assistance (§§ 173-312-010 — 173-312-100)
Chapter 173-313 - Local solid waste enforcement grant regulation (§§ 173-313-010 — 173-313-050)
Chapter 173-321 - Public participation grants (§§ 173-321-010 — 173-321-080)
Chapter 173-322 - Remedial action grants and loans (§§ 173-322-010 — 173-322-130)
Chapter 173-322A - REMEDIAL ACTION GRANTS AND LOANS (§§ 173-322A-010 — 173-322A-350)
Chapter 173-323 - Grants And Loans (§§ 173-323-010 — 173-323-120)
Chapter 173-325 - Low-level radioactive waste disposal (§§ 173-325-010 — 173-325-050)
Chapter 173-326 - Commercial low-level radioactive waste disposal - Site use permits (§§ 173-326-010 — 173-326-050)
Chapter 173-328 - Mixed waste management fees (§§ 173-328-010 — 173-328-070)
Chapter 173-330 - Used automotive oil recycling sign requirements for automotive oil sellers (§§ 173-330-010 — 173-330-900)
Chapter 173-455 - Air quality fee rule (§§ 173-455-010 — 173-455-160)
Chapter 173-460 - Controls for new sources of toxic air pollutants (§§ 173-460-010 — 173-460-150)
Chapter 173-476 - Ambient air quality standards (§§ 173-476-010 — 173-476-900)
Chapter 173-480 - Ambient air quality standards and emission limits for radionuclides (§§ 173-480-010 — 173-480-080)
Chapter 173-481 - Ambient air quality and environmental standards for fluorides (§§ 173-481-010 — 173-481-160)
Chapter 173-485 - PETROLEUM REFINERY GREENHOUSE GAS EMISSION REQUIREMENTS (§§ 173-485-010 — 173-485-090)
Chapter 173-490 - Emission standards and controls for sources emitting volatile organic compounds (VOC) (§§ 173-490-010 — 173-490-208)
Chapter 173-491 - Emission standards and controls for sources emitting gasoline vapors (§§ 173-491-010 — 173-491-050)
Chapter 173-492 - Motor fuel specifications for oxygenated gasoline (§§ 173-492-010 — 173-492-100)
Chapter 173-495 - Weather modification (§§ 173-495-010 — 173-495-120)
Chapter 173-500 - Water resources management program established pursuant to the Water Resources Act of 1971 (§§ 173-500-010 — 173-500-990)
Chapter 173-501 - Instream resources protection program Nooksack water resource inventory area (WRIA) 1 (§§ 173-501-010 — 173-501-100)
Chapter 173-503 - Instream resources protection program - Lower and Upper Skagit water resources inventory area (WRIA 3 and 4) (§§ 173-503-010 — 173-503-100)
Chapter 173-505 - Instream resources protection and water resources program (§§ 173-505-010 — 173-505-180)
Chapter 173-507 - Instream resources protection program - Snohomish River basin, water resource inventory area (WRIA) 7 (§§ 173-507-010 — 173-507-080)
Chapter 173-508 - Instream resources protection program - Cedar-Sammamish basin, water resource inventory area (WRIA) 8 (§§ 173-508-010 — 173-508-100)
Chapter 173-509 - Instream resources protection program - Green-Duwamish River basin, water resource inventory area (WRIA) 9 (§§ 173-509-010 — 173-509-100)
Chapter 173-510 - Instream resources protection program - Puyallup River basin, water resource inventory area (WRIA) 10 (§§ 173-510-010 — 173-510-100)
Chapter 173-511 - Instream resources protection program - Nisqually River basin, water resource inventory area (WRIA) 11 (§§ 173-511-010 — 173-511-100)
Chapter 173-512 - Instream resources protection program - Chambers-Clover creeks basin, water resource inventory area (WRIA) 12 (§§ 173-512-010 — 173-512-080)
Chapter 173-513 - Instream resources protection program - Deschutes River basin, water resource inventory area (WRIA) 13 (§§ 173-513-010 — 173-513-100)
Chapter 173-514 - Instream resources protection program - Kennedy-Goldsborough water resource inventory area (WRIA) 14 (§§ 173-514-010 — 173-514-090)
Chapter 173-515 - Instream resources protection program - Kitsap water resource inventory area (WRIA) 15 (§§ 173-515-010 — 173-515-100)
Chapter 173-517 - Water resources management program for the Quilcene-Snow water resource inventory area (WRIA 17) (§§ 173-517-010 — 173-517-210)
Chapter 173-518 - Water resources management program for the dungeness portion of the Elwha-Dungeness water resource inventory area (WRIA) 18 (§§ 173-518-010 — 173-518-140)
Chapter 173-522 - Water resources program in the Chehalis River basin, WRIA-22 and 23 (§§ 173-522-010 — 173-522-090)
Chapter 173-527 - Water resources management program for the Lewis basin, WRIA 27 (§§ 173-527-010 — 173-527-140)
Chapter 173-528 - Water resources management program for the Salmon-Washougal basin, WRIA 28 (§§ 173-528-010 — 173-528-140)
Chapter 173-531A - Water resources program for the John Day-McNary Pools Reach of the Columbia River, WRIA 31 and parts of WRIAs 32, 33, 36, and 37 (§§ 173-531A-010 — 173-531A-090)
Chapter 173-532 - Water resources program for the Walla Walla River basin, WRIA-32 (§§ 173-532-010 — 173-532-120)
Chapter 173-539A - Upper Kittitas groundwater rule (§§ 173-539A-010 — 173-539A-990)
Chapter 173-545 - Instream resources protection program - Wenatchee River basin, water resource inventory area (WRIA) 45 (§§ 173-545-010 — 173-545-170)
Chapter 173-546 - Water resources management program - Entiat River basin water resource inventory area (WRIA) 46 (§§ 173-546-010 — 173-546-150)
Chapter 173-548 - Water resources program in the Methow River basin, WRIA-48 (§§ 173-548-010 — 173-548-100)
Chapter 173-549 - Water resources program in the Okanogan River basin, WRIA-49 (§§ 173-549-010 — 173-549-900)
Chapter 173-555 - Water resources program in the Little Spokane River basin, WRIA-55 (§§ 173-555-010 — 173-555-100)
Chapter 173-557 - WATER RESOURCES MANAGEMENT PROGRAM FOR THE SPOKANE RIVER AND SPOKANE VALLEY RATHDRUM PRAIRIE (SVRP) AQUIFER (§§ 173-557-010 — 173-557-110)
Chapter 173-559 - Water resources program for the Colville River basin, WRIA-59 (§§ 173-559-010 — 173-559-100)
Chapter 173-563 - Instream resources protection program for the main stem Columbia River in Washington state (§§ 173-563-010 — 173-563-900)
Chapter 173-564 - Water resources management program for the main stem of the Snake River in Washington state (§§ 173-564-010 — 173-564-040)
Chapter 173-566 - Streamflow Restoration Funding (§§ 173-566-010 — 173-566-370)
Chapter 173-590 - Procedures relating to the reservation of water for future public water supply (§§ 173-590-010 — 173-590-190)
Chapter 173-591 - Reservation of future public water supply for Thurston County (§§ 173-591-010 — 173-591-130)
Chapter 173-700 - Wetland mitigation banks (§§ 173-700-100 — 173-700-800)
Chapter 173-802 - SEPA procedures (§§ 173-802-010 — 173-802-190)
Chapter 173-900 - Electronic products recycling program (§§ 173-900-010 — 173-900-997)
Chapter 173-901 - Better brakes (§§ 173-901-010 — 173-901-180)
Chapter 173-910 - Mercury-containing lights product stewardship program (§§ 173-910-010 — 173-910-630)
Chapter 173-925 - Post-consumer recycled content in plastic containers (§§ 173-925-010 — 173-925-100)