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.
SEPA guidance on appeal process
SEPA guidance on administrative and judicial appeals
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/appeals
SEPA checklist guidance, Section B: Plants
SEPA Guidance for Plants section, Part B for the state Environmental Checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-4-plants
SEPA checklist guidance, Section B: Animals
Guidance for Part B, Animals section for SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-5-animals
SEPA checklist guidance, Section B: Energy & natural resources
Guidance for Energy & natural resources section for Part B, SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-6-energy-natural-resou
SEPA checklist guidance, Section B: Environmental health
Guidance for Environmental Health section of Part B for SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-7-environmental-health
SEPA checklist guidance, Section B: Land & shoreline use
Guidance for Land & shoreline use in Part B of SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-8-land-shoreline-use
SEPA checklist guidance, Section B: Housing
Guidance for completing Housing section for Part B of the SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-9-housing
SEPA checklist guidance, Section B: Aesthetics
Guidance for completing Aesthetics section for Part B of the SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-10-aesthetics
SEPA checklist guidance, Section B: Recreation
Guidance for completing Recreation section for Part B of SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-12-recreation
SEPA checklist guidance, Section B: Historic & cultural preservation
Guidance for historic & cultural preservation section in SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-13-historic-cultural-p
SEPA checklist guidance, Section B: Public services
Guidance for completing Public Services section of Part B of SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-15-public-services
SEPA checklist guidance, Section B: Utilities
Guidance to complete Utilities section of Part B of SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-16-utilities
SEPA checklist guidance, Section B: Surface water
Guidance to complete Surface water section for Part B of SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-3-water/environmental-elements-surface-water
Clean energy coordination
We provide information on how clean energy projects are sited, reviewed, and permitted.
https://ecology.wa.gov/regulations-permits/sepa/clean-energy
Clean Energy Coordinated Permit Process
We assist with pre-application discussions, environmental review and permit processes.
https://ecology.wa.gov/regulations-permits/sepa/clean-energy/clean-energy-coordinated-permit-process
Chehalis flood reduction project draft EIS presentation
Presentation of draft EIS for Chehalis Basin flood-reduction project
https://ecology.wa.gov/chehalis-draft-sepa-eis-presentation
200923 phonein NWIW hearing
Sept. 23 phone in NWIW hearing transcript
https://ecology.wa.gov/200923-phonein-nwiw-hearing
Governor's letter to the Chehalis Basin Board (non-dam alternative)
A letter from Governor Jay Inslee requesting the exploration of non-dam alternatives to the proposed Chehalis Basin River flood control dam
https://ecology.wa.gov/governor-s-non-dam-alternative-letter-chehalis-ba
Governor's letter to the Director (non-dam alternative)
A letter from Governor Jay Inslee requesting the exploration of non-dam alternatives to the proposed Chehalis Basin River flood control dam
https://ecology.wa.gov/governor-s-non-dam-alternative-letter-ecology-and
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