Enforcement Procedures

  1. Upon identifying a parked vehicle with a gross vehicle weight rating (GVWR) 14,000 pounds or greater, the officer shall drive by or stop to listen to verify that the main engine of the vehicle is operating while the vehicle is parked.
Examples of vehicles over 14,000 pounds GVWR include

Bucket Truck

Delivery Truck

Dump Truck

Inner- City Tour Bus

Large Motor Home

Refuse Hauler

School Bus

Stake Truck

Step Van



Tanker Truck

Tow Truck

Tractor-Trailer Rig

Transit Bus


  1. Drive by or stop to listen to verify that the main engine of the vehicles operating while the vehicle is parked.
  2. Use stopwatch to time continuous idling for at least 5 minutes or minimum time limit as stated in local idling ordinance.
  3. Use an exemption checklist to determine if any idling ordinance exemptions apply (If ordinance references TCEQ Locally Enforced Motor Vehicle Idling Limitations.
  4. Issue a warning or citation if vehicle does not meet any exemption for idling in excess of idling limit.
  5. Photograph or video record vehicle for verification in the event of a court appeal. 

Areas suggested for enforcement include locations with significant heavy-duty vehicle traffic, such as existing freight facilities. In addition, the following types of locations are also suggested for monitoring and enforcing idling activity:

Construction Material Loading Sites
Loading Docks
Parking Lots
Residential Neighborhood

School Zones
Service Roads
Truck Stops

Staff Contacts:
Huong Duong
Jason Brown