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San Antonio and the State Implementation Plan

Information on the State Implementation Plan (SIP) to improve air quality in the San Antonio area and meet the requirements of the Federal Clean Air Act. The area includes Bexar, Comal, Guadalupe, and Wilson Counties.

San Antonio area image

Attainment Status

Current air quality designations for the six criteria pollutants

Air Quality History

San Antonio air quality history from the 1990s to the present

Latest Activities

Information about the latest events and activities related to San Antonio and the SIP

Air Quality Plans

Adopted SIP revisions and agreements from the 1970s to present

Air Quality Control Measures

Information on air quality control measures implemented in Texas

Contact Information and Related Links

How to contact TCEQ SIP staff, local air quality planning groups, and other helpful links