We issue Prevention of Significant Deterioration (PSD) permits for industrial sources of air pollution in Washington. Some projects are regulated by Energy Facility Site Evaluation Council, EPA, or tribes.
Once issued, final PSD permits remain active unless they are rescinded.
Determine if you need a PSD permit
Option A: Schedule a pre-application meeting with us. If you know your project needs a PSD permit, skip this step.
Option B: If you want to make sure your project needs a PSD permit:
- Fill out an Application for a PSD Applicability Determination (as much as you can).
- Schedule a pre-application meeting with us (contact information below) and bring your Application for a PSD Applicability Determination.
For projects regulated by the Energy Facility Site Evaluation Council (EFSEC) or EPA Region 10 on tribal lands, contact those agencies.
Pre-application meeting for a PSD permit
We recommend meeting with Ecology staff before preparing a PSD application. At the pre-application meeting, we will:
- Coordinate the agencies involved in the project.
- Discuss your project, the PSD permitting process, and what to include in your application.
- Review the fee application that you must submit with the fee and project application.
To schedule a pre-application meeting, call or email the contact listed below.
- The applicant meets with Ecology and other agencies in a pre-application meeting to discuss the project.
- The applicant submits the fee and application with all the necessary technical information.
- If all the necessary technical information is included, we consider the application complete. If the application is incomplete, we notify the applicant to submit additional information.
- Once the application is complete, we draft a permit.
- We open a public comment period. We may also hold a public hearing, depending on public interest.
- We respond to public comments and make changes to the permit as necessary.
- If significant changes are made to the permit, we open another public comment period.
- If no significant changes are made to the permit, we issue a final permit.
For more information about the permitting process, refer to the Guidance on Washington's Prevention of Significant Deterioration Permitting Program.