Fort Worth sits inside the Dallas-Fort Worth ozone nonattainment area, so TCEQ Rule 30 TAC 114.512 caps heavy-duty diesel idling at five consecutive minutes. The city has no separate municipal idling ordinance and defers enforcement to TCEQ.
Vehicles with a gross vehicle weight rating greater than 14,000 pounds operating in Tarrant County may not idle for more than five consecutive minutes under TCEQ 30 TAC Chapter 114, Subchapter J, Division 2, which covers all DFW nonattainment counties. The rule reaches commercial trucks, buses, and similar diesel rigs. Exceptions apply for traffic stops, sleeper-berth rest periods during temperature extremes, emergency vehicles, and active loading. Fort Worth has not adopted a parallel municipal ordinance, and Fort Worth police generally refer suspected violations to TCEQ Region 4. Penalties flow through Texas Health and Safety Code Section 382.085 and TCEQ administrative orders rather than city citations.
TCEQ administrative penalties can reach several hundred dollars per violation. Repeat or willful violators of Texas Health and Safety Code Section 382.085 face escalating civil enforcement actions and possible higher fines through agreed orders.
See how Fort Worth's vehicle idling restrictions rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.