Chapters 173-350 and 351 WAC – Solid Waste Facilities

The 2025 legislature amended Chapter 70A.205 RCW to require Ecology to approve landfill permits alongside jurisdictional health departments (JHDs). The revised law also provides JHDs authority to issue orders and penalties to solid waste facilities subject to permitting, provides Ecology authority to issue orders and penalties, and requires solid waste facilities to allow JHDs and Ecology to conduct inspections and collect samples.

This rulemaking will address a new landfill permit approval process, and staff will also consider clarifications, corrections and other improvements to Chapter 173-351 WAC, Municipal Solid Waste Landfills and Chapter 173-350 WAC Solid Waste Handling Standards.

Rulemaking timeline

Timeline

Announcement phase (CR-101)

Filing date:
Dec. 17, 2025


Announcement documents

Rule development phase

Dec. 17, 2025 – Winter 2026

Additional languages

Español (Spanish) 中文 (Chinese) Tiếng Việt (Vietnamese) 한국어 (Korean) Pусский (Russian) Yкраїнський (Ukrainian)

Accessibility

To request ADA accommodation for disabilities, or printed materials in a format for the visually impaired, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831. People with impaired hearing may call Washington Relay Service at 711. People with speech disability may call TTY at 877-833-6341.