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Air Dispersion Modeling

Data files and information on modeling for those who must have it done as part of their new source review air permit applications.

June 30, 2014: The TCEQ Air Permits Division has developed draft air quality modeling guidelines to provide staff with a process to evaluate and determine air quality impacts analysis requirements for case-by-case permit reviews. While the focus of the document is on the technical review process, it is available to the regulated community and the public to provide an understanding of air quality impacts analysis requirements and processes that affect air permit applications.

The division is soliciting comments on the draft guidance. Please review the draft guidance and provide comments to by no later than August 31, 2014. Comments received will be considered as the draft guidance is finalized. Once final, the guidance will supersede Air Dispersion Modeling Guidelines, RG-25, February, 1999.

If you have any questions about this draft guidance, please contact the TCEQ Air Permits Division at 512-239-1250.

Learn More About Pre-Modeling Procedures

Learn More About Modeling Procedures

Modeling Guidance:

  • Guidance – Guidance documents for air dispersion modeling.
  • Interim Guidance - EPA guidance with ADMT supplementary guidance for air dispersion modeling.
  • Policy Memos - Policy Memos for air dispersion modeling.

Modeling Data:

Additional Information

Contact Information

Hot Topics

Hot Topics

Hot TopicEPA Guidance for PM2.5 Permit Modeling has been updated.

Hot TopicDraft TCEQ Air Quality Modeling Guidelines are now available.