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Construction Permit Forms and APENS

As of January 1, 2014, the Colorado Air Pollution Control Division no longer accepts blank APENs. Additional fees will apply if an APEN is submitted without the necessary information. An application with missing information may result in longer processing times.  Please note that all APEN submissions should be completed using forms currently supplied by the Division (see Reg. 3, Part A, Section II.A).  If you need assistance, please refer to: www.colorado.gov/cdphe/sspermits.



This site provides downloadable air emission permit ("Construction Permit") application, reporting, and compliance forms required by the Air Pollution Control Division (APCD) Stationary Sources Program. Forms are provided in Microsoft Word format and Adobe Acrobat Portable Document Format (PDF). For a free copy of the Adobe Acrobat Reader, go to the Adobe website.



Oil and Gas forms


APEN forms


  • Notices
    • permit cancellation, source relocation, malfunction reporting


Self certification