Search Air Permit Policy & Guidance Databases
Since 1978, EPA has provided guidance to Regions, States and Permittees to assist in the implementation of its Clean Air Act permitting programs. This page provides the ability to search almost 1,500 documents by keyword or phrase. You can select one or more individual compilations or search all. See "Search Tips" below for suggestions on how to build your query.
You can also view each of the document compilations above in sortable, filterable tables.
By default, a search locates documents containing the search terms specified with the terms that are entered first given more weight than the terms that come after. When you want documents containing any of several words, use commas to separate them.
For example, searching for:
1) "operating permit"
2) operating OR permit
3) operating -permit