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Questions or Comments: airperm@tceq.texas.gov

NSR Guidance Documents for Mechanical Sources

Guidance for obtaining permits for new facilities or modifications to existing facilities that will result in increased air emissions.

Mechanical Sources

This information is maintained by the Mechanical/Agricultural/Construction NSR Permits Section and is subject to change. These requirements represent NSR guidelines and are provided for informational purposes only. The requirements for any permit or amendment are subject to change through TCEQ case by case evaluation procedures [30 TAC 116.111(a)]. Please contact the Mechanical/Agricultural/Construction NSR Permits Section management if there are questions related to the guidelines. Please note that more current BACT guidance is located on the BACT Guidelines for Mechanical, Agricultural and Construction web page.

Additional information can be found on the Air NSR Permits: Index of Common Permitted Facilities page.

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