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.
Online tool: Environmental Information Management System (EIM) - search data
Access to discrete and time-series environmental data for air, water, soil, sediment, aquatic animals, and plants.
https://ecology.wa.gov/environmental-information-management-system-eim
Online tool: Ecology's Administration of Grants & Loans (EAGL) - login required
(SAW account required)
https://ecology.wa.gov/ecology-s-administration-of-grants-loans-eagl
Online tool: Facility/Site database
Find information on facilities and sites of interest to Ecology.
https://ecology.wa.gov/facility-site-database
Online tool: Industrial Permits look-up
Look up industrial section permits with hyperlinks to all documents currently available electronically. You can view active or proposed permits and associated documents:
https://ecology.wa.gov/industrial-permits-look-up-tool
Scientific services
We offer scientific services to support environmental work and inquiry for projects funded through public dollars. We provide accurate, credible, and defensible analyses using the latest accredited methods.
https://ecology.wa.gov/scientific-services
Online tool: Ecology staff directory
Look up contact information for Ecology staff, by last name. Includes e-mail, phone, fax and location.
https://ecology.wa.gov/ecology-staff-directory
Online tool: Ecology subject referral directory
Look up contact information for Ecology staff, by subject topic. Includes e-mail, phone, fax and location.
https://ecology.wa.gov/ecology-subject-referral-directory
Online tools & databases
This is the gateway to Ecology's many web-accessible databases and tools.
https://ecology.wa.gov/online-tools-databases
RCW Chapter 36.70A
Growth management planning by selected counties and cities
https://ecology.wa.gov/rcw-chapter-36-70a
RCW Chapter 43.21B
Environmental hearings office, Pollution control hearings board
https://ecology.wa.gov/rcw-chapter-43-21b
Shellfish aquaculture 401 certification
We modified our certification process for shellfish growers because of new federal requirements.
https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/shellfish-aquaculture
QA planning process for NEP grantees
Printable and accessible PDF version of a flowchart showing the approval process for Quality Assurance Project Plans for National Estuary Program grantees.
https://ecology.wa.gov/nepqaflowchart
Puget Sound Tide Model
A research tool programmed in Python by David Finlayson for predicting the tides of the Sound. The model was originally developed by Lavelle et al. (1988) at NOAA PMEL and subsequently updated by H. Mofjeld to include the full suite of standard tidal constituents.
https://ecology.wa.gov/puget-sound-tide-model-zip
Guidance for Marine Net Pen Aquaculture in Washington State
Proposed guidance for net pen aquaculture management and operations in Puget Sound and the Strait of Juan de Fuca.
https://ecology.wa.gov/guidance-for-marine-net-pen-aquaculture-in-washing
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