Research & Data

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Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.

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Draft fee schedule (WAC 173-455) 5-18-22

This is the May 18, 2022 draft fee schedule for Chapter 173-455 WAC, Air Quality Fee Rule.

https://ecology.wa.gov/draft-fee-schedule-wac-173-455-5-18-22

Draft rule language (WAC 173-400) 11/29/17

This is draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources. (11/29/17)

https://ecology.wa.gov/draft-rule-language-wac-173-400-11-29-17

Draft rule language (WAC 173-400) 10/10/18

This is draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources. (10/10/18)

https://ecology.wa.gov/sru-alternative-emission-standard10_10_18_

Draft fee by source (WAC 173-455; WAC 173-400) 06/27/17

This shows draft fee amounts on 06/27/17 for registration sources for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

https://ecology.wa.gov/draft-fee-by-source-wac-173-455;-wac-173-400-06

Draft refrigerant management requirements (WAC 173-443) 11-17-22

This is the November 17, 2022 draft requirements for refrigerant management under Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/draft-refrigerant-management-requirements-wac-1

Draft rule 11/29/17

This is the draft rule from 11/29/17.

https://ecology.wa.gov/draft-rule-wac-173-400-401-11-29-17

Draft fee schedule (WAC 173-455; 173-400) 2/28/18

This is a draft fee schedule for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources. (2/28/18)

https://ecology.wa.gov/draft-fee-schedule-wac-173-455;-173-400-02-28-18

Draft rule language (WAC 173-400) 01/24/19

This is draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources. (1/24/19)

https://ecology.wa.gov/draft-rule-language-for-wac-173-400-wac-173-400

Draft fee schedule (WAC 173-455; 173-400) 02/07/18

This is a draft fee schedule for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources. (2/7/18)

https://ecology.wa.gov/draft-fee-schedule-wac-173-455;-173-400-02-07-18

Draft refrigerant management requirements (WAC 173-443) 9-14-22

This is the September 14, 2022 draft requirements for refrigerant management under Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/draft-refrigerant-management-requirements-wac-173

Draft fee schedule (WAC 173-455; WAC 173-400) 06/27/17

This is a draft fee schedule on 06/27/17 for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

https://ecology.wa.gov/draft-fee-schedule-wac-173-455;-wac-173-400-06-2

Draft rule 02/22/17

https://ecology.wa.gov/draft-rule-wac-173-400;401-02-22-17

Draft rule 03/20/17

https://ecology.wa.gov/draft-rule-wac-173-400;401-03-20-17

Draft fee schedule (WAC 173-455; WAC 173-400) 05/24/17

This is a draft fee schedule on 05/24/17 for for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

https://ecology.wa.gov/draft-fee-schedule-wac-173-455;-wac-173-400-05-2

Draft rule 10/18/17

Annotated rule changes to Chapter 173-400 WAC

https://ecology.wa.gov/draft-rule-wac-173-400;401-10-18-17

Draft rule (11/10/16)

https://ecology.wa.gov/draft-rule-wac-173-400;401-11-10-16

Decision-making document (WAC 173-460) 05/19

This is the documentation of key decisions for updating the list of toxic air pollutants in Chapter 173-460 WAC, Controls for New Sources of Toxic Air Pollution Sources.

https://ecology.wa.gov/decision-making-document-wac-173-460-05-19

Draft rule (12/06/16)

https://ecology.wa.gov/draft-rule-wac-173-400;401-12-06-16

Draft rule (WAC 173-400;401) 12/20/16)

Draft rule 12/20/16)

https://ecology.wa.gov/draft-rule-wac-173-400;401-12-20-16

Draft rule 401 10/18/17

Annotated rule changes to Chapter 173-401 WAC

https://ecology.wa.gov/draft-rule-401-wac-173-400;401-10-18-17