Regulations & Permits

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

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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.

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Regulations & Permits

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

Regulations & Permits icon

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...
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Environmental review (SEPA)
Greenhouse Gas Assessment for Projects (GAP) Rulemaking November 2020 Presentation
Public webinar presentation given 11-17-20
https://ecology.wa.gov/11-17-20-presentation
Greenhouse Gas Assessment for Projects (GAP) Rulemaking November 2020 Meeting Summary
Meeting summary for 11-17-20 public rulemaking webinar
https://ecology.wa.gov/11-17-20-meeting-summary
SEPA checklist guidance, Section A: Background
Guidance helps applicants complete SEPA part A environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-a-background
SEPA Guidance on Categorical Exemptions
Guidance on SEPA exemptions.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/exemptions
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: 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: 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: 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: 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: Groundwater
Guidance to complete Groundwater 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-groundwater
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: 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
​SEPA guide for project applicants
​SEPA guidance for private proponents.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-project-applicants
​SEPA Frequently Asked Questions
​SEPA questions and answers.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-faq
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
Revising and adopting existing documents
Guidance for using existing SEPA documents
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/revising-and-adopting-existing-documents
Lead agency determination and responsibilities
SEPA guidance for determining lead agency and evaluating the proposal.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/lead-agency-determination-and-responsibilities
Contanda expansion proposal
Contanda, formerly Westway Terminal, proposed an expansion of the Grays Harbor methanol terminal.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-at-ecology/grays-harbor-terminal-expansion/contanda
Imperium expansion proposal
Imperium Terminal Services proposed expanding its existing transport facility in Hoquiam.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-at-ecology/grays-harbor-terminal-expansion/imperium-expansion-proposal
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