EPA Pacific Southwest (Region 9) Clean Air Act Permitting System (CAAPS)

The Clean Air Act Permitting System (CAAPS) allows state, local, and tribal permitting authorities to electronically submit draft, proposed, and final permits and supporting permit documents to EPA. EPA's Permit Hub allows public online viewing of those permits and support documents, as well as of EPA comments on proposed title V permits. Note that this database is only complete where permitting authorities submit permits electronically to the EPA via CAAPS. When permits are not submitted through CAAPS, only summary data may be available.

If a permit action is currently within the public comment period, public comments must be submitted to the relevant permitting authority and not to the EPA. Please contact the corresponding permitting authority for more detail on how to comment on a permit action. For information on EPA-issued permits, please visit Clean Air Act Permit Actions in EPA's Pacific Southwest (Region 9).

Please contact Christa Leska at leska.christa@epa.gov or (415) 972-3930 with any questions related to CAAPS or to EPA’s Permit Hub.