A state program allows Texans to report vehicles with excessive tailpipe smoke.
Anyone who notices a vehicle emitting heavy smoke from the tailpipe for 10 seconds or longer can file a report over the phone or online with the Texas Commission on Environmental Quality.
A report under the Smoking Vehicle Program should be filed within 30 days of witnessing the problem vehicle. The report should include the vehicle’s license plate number, time of day, date and the city where it was observed.
The program applies only to vehicles registered in Texas.













