Bexar County opted into TCEQ Rule 30 TAC 114.512, prohibiting commercial vehicles over 14,000 pounds GVWR from idling more than five consecutive minutes when temperatures fall between 40 and 90 degrees, with several work-related exemptions.
San Antonio sits within a TCEQ-approved Locally Enforced Motor Vehicle Idling Limitations area covering Bexar County. Heavy commercial vehicles exceeding 14,000 pounds gross vehicle weight rating cannot idle longer than five consecutive minutes between 40 and 90 degrees Fahrenheit. Exemptions cover safety inspections, mechanical work, traffic delays, sleeper-berth temperature control between October and April, power take-off, and emergency response. The City of San Antonio Office of Sustainability coordinates with TCEQ field officers and SAPD on enforcement. Personal passenger vehicles are not regulated. The rule supports federal ozone attainment for the San Antonio New Braunfels metro and reduces diesel exposure near schools and freight corridors.
First-offense fines reach up to 500 dollars under Texas Health and Safety Code Section 382.0518, with repeat violations climbing higher. Fleet operators may face TCEQ enforcement orders and corrective action plans for company-wide noncompliance.
San Antonio, TX
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See how San Antonio's vehicle idling restrictions rules stack up against other locations.
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