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.
Dam permits
Construction or reservoir permits may be required for your project.
https://ecology.wa.gov/regulations-permits/permits-certifications/dam-safety-permit
Water right permits
Use a pre-application request form before applying for a new or updated water right.
https://ecology.wa.gov/regulations-permits/permits-certifications/water-right-permits
Water use compliance and enforcement
Enforcing water use laws reduces conflict among competing water users and protects the resource.
https://ecology.wa.gov/regulations-permits/compliance-enforcement/water-use-compliance
Water rights and dam safety policies, procedures & guidance
Policies, procedures & guidance guide our water right and dam safety work
https://ecology.wa.gov/regulations-permits/plans-policies/water-rights-dam-safety-policies-procedures-guidan
WAC 173-166 Emergency drought relief
This is the rulemaking page for Chapter 173-166 WAC.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-166
Cannabis licensing and the environment
Environmental permits may be required for cannabis growers and processors.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-cannabis-businesses
Frequently flooded areas: Critical Areas Ordinance
Frequently flooded areas are covered by Critical Areas Ordinances promoting safety from floods.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-floodplains-critical-areas-ordinanc
Underground injection control well registration requirements & information
Get Underground Injection Control (UIC) well registration requirements and information.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program/uic-registration-requirements-information
Heat pump & air conditioning return flow UIC wells
Groundwater circulated through a heat pump/air conditioning (HAC) system has to meet requirements.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program/heat-pump-air-conditioning-return-flow-wells
401 Water Quality Certifications for federal facilities
EPA writes NPDES permits for federal facilities. We issue water quality certifications for permits.
https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/certifications-for-npdes-federal-permits
Clean Water Act: Section 401 Water Quality Certifications
Under the Clean Water Act, we help make sure projects, actions, and activities don't harm state waters.
https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification
Industrial facility permits and regulation
We regulate air, water, and waste for most of the large industrial facilities in Washington.
https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits
Fish consumption rate: Technical support document
This 2013 technical support document estimates how much fish Washington residents are eating.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/fish-consumption-rates-technical-support
Overview of compliance & enforcement at Ecology
View the compliance and enforcement authority we have, and what actions we have recently taken.
https://ecology.wa.gov/regulations-permits/compliance-enforcement/overview-of-compliance-enforcement
34 results
21 - 34 of 34