| Title (link to summary) |
Number |
Date (released or updated) |
| Rule Adoption Notice for the Dangerous Waste Regulations Chapter 173-303 WAC | 09-04-018 | June 2009 |
| Rule Adoption Notice: Recyclable Materials - Transporter and Facility Requirements, chapter 173-345 WAC | 09-07-012 | April 2009 |
| Emergency Rule Adoption Notice: American Recovery and Reinvestment
Act of 2009 Implementation | 09-10-027 | April 2009 |
| Emergency Rule Adoption Notice
Management of Exempt Ground Water Wells in Kittitas County, Chapter 173-539A WAC | 09-11-005 | March 2009 |
| Rule Adoption Notice: Chapter 173-160, Minimum Standards for Construction and Maintenance of Wells | 08-11-051 | December 2008 |
| Rule Adoption Notice: Chapter 173-527, Water Management Rule for the Lewis Basin, and Chapter 173-528, Water Management Rule for the Salmon-Washougal Basin | 08-11-058 | December 2008 |
| Public Hearing Notice: Ch. 173-400 WAC and Ch. 173-460 WAC | 08-02-031 | December 2008 |
| Rule Adoption Notice: Ch. 173-407 WAC and Ch. 173-218 WAC | 08-02-020 | June 2008 |
| Rule Adoption Notice (Repeal) | 07-08-011 | November 2007 |
| Rule Adoption Notice (Amendment) | 07-08-012 | November 2007 |
| Rule Adoption Notice MTCA Cleanup Regulation, Chapter 173-340 WAC | 07-09-110 | October 2007 |
| Rule Adoption Notice for Electronic Product Recycling Program, Chapter 173-900 WAC
Dangerous Waste Regulations, Chapter 173-303 WAC | 07-07-039 | October 2007 |
| Rule Adoption Notice: Walla Walla River Basin, Chapter 173-532 WAC | 07-11-030 | August 2007 |
| Rule Adoption Notice: Adoption of Chapter 173-98 WAC and Chapter 173-95A WAC | 07-10-049 | July 2007 |
| Rule Adoption Notice for the Amendments to Chapter 173-308 WAC Biosolids Management | 07-07-019 | May 2007 |
| Rule Adoption Notice: Chapt. 173-400 WAC, General Regulation for Sources of Air Pollution | 07-02-007 | May 2007 |
| Rule Adoption Notice: Air Quality Fee Rule, Ch. 173-455 WAC | 07-02-009 | May 2007 |
| Rule Adoption Notice for the Amendments to Chapter 173-322 WAC; Remedial Action Grants | 07-07-011 | April 2007 |
| Rule Adoption Notice: Chapter 173-160-381(3) WAC, Standards for Decommissioning Dug Wells | 07-11-004 | February 2007 |
| Rule Adoption Notice, Chapter 173-18, 20, 22, 27 WAC | 06-06-032 | January 2007 |
| Rule Adoption Notice -- Water Quality Standards, Chapter 173-201A WAC | 06-10-090 | December 2006 |
| Rule Adoption Notice Electronic Product Recycling, Chapter 173-900 WAC | 06-07-032 | December 2006 |
| Rule Adoption Notice: WAC 173-160 and WAC 173-162 | 06-11-037 | November 2006 |
| Rule Adoption Notice for Facility Oil Handling Standards, Chapter 173-180 WAC & Vessel Oil Transfer Advance Notice and Transfer Containment Standards, Chapter 173-184 WAC | 06-08-028 | September 2006 |
| Rule Adoption Notice for Oil Spill Contingency Plan Rules | 06-08-030 | September 2006 |
| Rule Adoption Notice: Water Conservancy Boards, Chapter 173-153 WAC | 06-11-027 | September 2006 |
| Rule Adoption Notice - Agricultural Burning, Chapter 173-430 WAC | 06-02-014 | August 2006 |
| Rule Adoption Notice: Chapter 173-224 WAC - Wastewater Discharge Permit Fees | 06-10-033 | June 2006 |
| Rule Adoption Notice: Amendments to Instream Resources Protection Program--Lower and Upper Skagit Water Resources Inventory Areas (WRIAs 3 and 4) | 06-11-008 | May 2006 |
| Focus on the PBT Rule | 06-07-011 | February 2006 |
| Rule Adoption Notice Persistent Bioaccumulative Toxins Chapter 173-333 WAC | 06-07-007 | February 2006 |
| Rule Adoption Notice: Underground Injection Control Program, Chapter 173-218 WAC and State Waste Discharge Permit Program, 173-216 WAC | 05-10-094 | December 2005 |
| Rule Adoption Notice: Low Emission Vehicles, Chapter 173-423 WAC | 05-02-031 | December 2005 |
| Rule Adoption Notice: Chapter 173-175 WAC, Dam Safety | 05-11-024 | September 2005 |
| Rule Adoption Notice: Stillaguamish River Basin | 05-11-029 | August 2005 |
| Rule Adoption Notice: Entiat River Basin , Chapter 173-546 WAC | 05-11-022 | August 2005 |
| Rule Adoption Notice: Remedial Action Grants, Chapter 173-322 WAC | 05-07-024 | May 2005 |
| Rule Adoption Notice: Solid Waste Handling Standards, Chapter 173-350 WAC | 05-07-026 | May 2005 |
| Rule Adoption Notice: Chapter 173-400 WAC, General Regulations for Air Pollution Sources | 05-02-009 | April 2005 |
| Rule Adoption Notification: Chapter 173-407 WAC, Carbon Dioxide Mitigation Program for Fossil-Fueled Thermal Electric Generating Facilities | 05-02-006 | March 2005 |
| Rule Adoption Notice - Dangerous Waste Regulations Chapter 173-303 WAC | 05-04-001 | February 2005 |
| Rule Adoption Notification for Chapter 173-175 WAC, Dam Safety | 04-11-016 | August 2004 |
| Rule Adoption Notification: Solid Waste Incinerators, Chapter 173-434 WAC | 04-02-001 | 2004 |
| Rule Adoption Notice: Chapter 173-480 WAC, Ambient Air Quality Standards and Emission Limits for Radionuclides | 07-02-013 | May 2000 |
| Focus Sheet: Open Burning Rule Revised (OBSOLETE) | 00-02-006 | March 2000 |
