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

Image of bucket truck
Bucket Truck

image of delivery truck
Delivery Truck

image of dump truck
Dump Truck

Image of inner-city tour bus
Inner- City Tour Bus

Image of large motor home
Large Motor Home

image of refuse hauler truck
Refuse Hauler

Image of large yellow school bus
School Bus

image of stake truck
Stake Truck

image of step van
Step Van



image of tanker truck
Tanker Truck

Image of tow truck
Tow Truck

image of tracor trailer rig
Tractor-Trailer Rig

image of transit bus
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