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Texas State Implementation Plan

The Texas State Implementation Plan (SIP) is the state’s comprehensive plan to clean the air and meet federal air quality standards.


Click on an area of the map for information about that area's air quality plans:


sip nonattainment areas

El Paso SIPDFW SIPNortheast Texas SIPBeaumont-Port Arthur SIPHouston-Galveston-Brazoria SIPSan Antonio SIPAustin SIPVictoria SIPCorpus Christi SIPsSan Antonio SIPAustin SIPEl Paso SIPDFW SIPNortheast Texas SIPBeaumont-Port Arthur SIPHouston-Galveston-Brazoria SIPVictoria SIPCorpus Christi SIPsStatewide SIPs


Additional information on Texas air quality planning


General information about state implementation plans

SIP Hot Topics

Current issues related to the Texas SIP

SIP Glossary

Special terms and abbreviations used in the Texas SIP

Texas Air Quality Rules

Information about air quality improvement and conformity regulations

Criteria Pollutants

Information about the six pollutants regulated under the Federal Clean Air Act

Texas SIP Revisions and Other Air Quality Plans

List of adopted SIP revisions and agreements from the 1970s to the present

Get Information or Contact Staff

TCEQ SIP staff contacts