Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.

See more about this collection...

Narrative Description of Figure 1. Pie Chart

The narrative description of Figure 1. pie chart on the Exploratory Rulemaking webpage.

https://ecology.wa.gov/narrative-description-of-figure-1-pie-chart

Cleanup Rule Notice No. 2: Invitation to statewide scoping webinar, Tuesday, April 3, 2018

You're invited to join our statewide listening session in-person or online on April 3, 2018, from 1pm to 3:30pm. Webinar starts at 1:30pm.

https://ecology.wa.gov/notice02cleanupruleinvitemar2018

Notification documentation boilerplate

Boilerplate for notification documentation

https://ecology.wa.gov/notification-documentation-boilerplate

Part Five

Solid waste handling standars part 5

https://ecology.wa.gov/part-five

OTS-4167.5 For Filing (WAC 173-180) 06/06/23

Proposed rule language for Chapter 173-180 WAC, Facility Oil Handling Standards

https://ecology.wa.gov/ots-4167-5-for-filing-wac-173-180-06-06-23

OTS-4169.5 For Filing (WAC 173-184) 06/06/23

Proposed rule language for Chapter 173-184 WAC, Vessel Oil Transfer Advance Notice and Containment Requirements

https://ecology.wa.gov/ots-4169-5-for-filing-wac-173-184-06-06-23

Part Four

Solid waste handling standards part 4

https://ecology.wa.gov/part-four

Part One

Solid waste handling standards part one

https://ecology.wa.gov/part-one

New Preliminary Rule (WAC 173-219) 03/17/15

Preliminary draft rule language for WAC 173-219 - March 17, 2015 version

https://ecology.wa.gov/new-preliminary-draft-rule-wac-173-219-03-17-15

NoticetoInterestedParties

This is the notice to interested parties that we sent out to all interested stakeholders.

https://ecology.wa.gov/noticetointerestedparties

New Preliminary Rule (WAC 173-219) 10/27/14

Reclaimed water preliminary rule language - October 27, 2014 version

https://ecology.wa.gov/new-preliminary-rule-wac-173-219-10-27-14

NoticeInterestedParties(WAC173219)082317

Notice to interested parties about the Aug. 23, 2017 – October 13, 2017 public comment period.

https://ecology.wa.gov/notice-interested-parties-wac-173-219-08-23-17

OTS-2519.1 For Filing (WAC 173-185) 9/2/20

Proposed rule language for Chapter 173-185 WAC, Oil Movement by Rail and Pipeline Notification

https://ecology.wa.gov/ots-2519-1-for-filing-wac-173-185-9-2-20

Notice to Withdraw Rulemaking and Immediately Refile 12/16/16

This is the notice to withdraw the earlier announcement to expand the scope of the rulemaking.

https://ecology.wa.gov/notice-to-withdraw-rulemaking-and-immediately-refi

Other rule changes (12/06/16)

Possible rule changes not related to SSM

https://ecology.wa.gov/other-rule-changes-wac-173-400;401-12-6-16

NCASI comments (WAC 173-460) 03/20/19

These are National Council for Air and Stream Improvement's (NCASI) 3/20/19 comments on acceptable source impact levels (ASIL) in Chapter 173-460 WAC, Controls for New Sources of Toxic Air Pollutants.

https://ecology.wa.gov/ncasi-comments-wac-173-460-03-20-19

ORCAA comments (WAC 173-460) 02/08/19

These are ORCAA's 2/8/19 comments about de minimis values in Chapter 173-460 WAC.

https://ecology.wa.gov/orcaa-comments-wac-173-460-02-08-19

Montana GREET model (WAC 173-424) 11-28-22

This spreadsheet is the final Montana GREET model, fuel carbon intensity calculator for Clean Fuels Program, November 28, 2022.

https://ecology.wa.gov/montana-greet-model-wac-173-424-11-28-22

Montana GREET model (WAC 173-424) 07-15-22

This spreadsheet is the Montana GREET model, fuel carbon intensity calculator for Clean Fuels Program, July 15, 2022.

https://ecology.wa.gov/montana-greet-model-wac-173-424-07-15-22

Chapter 173-925 WAC

This is the official rule language adopted for WAC 173-925, regarding required content of recycled plastic in plastic products.

https://ecology.wa.gov/ots-copy-of-chapter-173-925-wac