Regulations & Permits

Learn more about how to manage noise pollution.

Do you have questions about noise pollution? Find some common questions and answers.

Do you have questions about noise pollution? Find some common questions and answers for governments.

This is the rulemaking page for Chapter 173-460 WAC, Controls for New Sources of Toxic Air Pollutants.

Ecology has delegated federal and state authority to implement and enforce various environmental laws and rules. We accomplish this through our open and public rulemaking process.

Rule Agenda for July - December 2017

This is the agenda for the 11/29/17 stakeholder meeting.

These are comments from legislators.

These are comments from the public.

These are comments from the regulated entities and associations.

Written comments from the July 12, 2016, public hearing.

Written comments from the July 14, 2016, public hearing.

This is a rulemaking announcement (CR-101) to update the recreational use criteria in WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

This is a webinar presentation about the rulemaking to revise recreational use criteria in the surface water quality standards (WAC 173-201A).

This is proposed rule language for WAC 173-442.

This is proposed rule language for WAC 173-441.

This is Unofficial rule language - readable format for WAC 173-442.

This is the SEPA determination of non-significance and addendum for WAC 173-442 and WAC 173-441

This is the secondary economic impacts analysis (REMI) for WAC 173-442 and WAC 173-441.

This is the SEPA determination of non-significance for WAC 173-442 and WAC 173-441