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Prevention of Significant Deterioration (PSD) Permits Information
This web site is intended for those seeking information about what to expect from the Prevention of Significant Deterioration (PSD) permitting process.
PSD permits are for projects that may significantly increase air pollutant emissions. The Washington Department of Ecology (Ecology) prepares PSD permits for industrial sources of air pollution (see EPA-Ecology delegation agreement link) except for projects involving Washington's Energy Facility Site Evaluation Council (EFSEC).
This web page includes information on PSD permits that are being or have been drafted by Ecology, comment and appeal procedures, and information intended to help PSD permit applicants. See the links at the left.
The permitting process is as follows:
Certain electric power generation projects are under the jurisdiction of the Washington Energy Facility Site Evaluation Council (EFSEC). These sources must contact EFSEC for information. EFSEC maintains a separate Internet site for accessing information regarding the sources under its jurisdiction.
Comments on any PSD permits that are open for public comment can be mailed to the indicated Ecology contact, Washington Department of Ecology, P.O. Box 47600, Olympia, WA 98504-7600.
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