vetech

Information and links to Regional low RVP gasoline, Texas Low-Emission Diesel (TxLED), and El Paso fuel programs.

Purpose of Reformulated Gasoline and the Texas counties required to use it.

Defines "tampering" and what kinds of vehicle repairs can be made to correct tampering. Texas law prohibits selling or leasing tampered vehicles.

Information on the regulation of fuel additives in Texas.

U.S. EPA publication on the history and precautions associated with automobile catalyst systems.

TCEQ has decommissioned its smoking vehicle program.