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Ecology's first preliminary draft rule language for Chapter 173-182 WAC, released May 18, 2026 for informal public comment. Covers administrative modernization, definitions, plan submittal and phase-in, NFO behavior and technical manual provisions (173-182-230, -349), one consolidated aerial surveillance standard incorporating UAS as an optional response tool (173-182-320/-321), and SCAT integration into shoreline cleanup planning (173-182-522). The drill provisions (173-182-700/-710) and a Middle Columbia River planning standard are NOT included in this first preliminary draft. First comments due June 17, 2026; informal comment period open until October 30, 2026.

Ecology's first preliminary draft rule language for Chapter 173-186 WAC (Railroad), released May 18, 2026 for informal public comment. Covers administrative modernization, definitions, plan submittal and phase-in, in-situ burning planning standards (173-186-340), enforcement/noncompliance, and alignment with WAC 173-182. The NFO drill provision (173-186-510) is NOT included in this first preliminary draft. First comments due June 17, 2026; informal comment period open until October 30, 2026.

Primary rule being amended - oil spill contingency planning for vessels, facilities, and pipelines

Railroad oil spill contingency plan rule - being amended

Federal response plan requirements for vessels

Federal regulations governing commercial drone operations

Existing equipment planning standard for vessels operating in the Tri-Cities area (Columbia River mile 316-322) — likely model for a new Mid-Columbia standard

Equipment planning standard for vessels operating in the Vancouver area (Columbia River mile 99-107) — the other Columbia River standard for comparison