Plano, TX Environmental Rules: Vehicle Idling Restrictions (2026)

Adopted by Ordinance No. " The rule targets the primary gasoline or diesel engine that propels the vehicle, not auxiliary power units. Subsection (c) lists thirteen defenses that keep the rule from reaching most everyday drivers and many commercial operations: any vehicle rated 14,000 pounds GVW or less is exempt outright; vehicles stuck in traffic beyond the driver's control are excused; military, National Guard, reserve, and emergency or law-enforcement vehicles are covered; engines running to power a non-propulsion mechanical operation, to perform maintenance or diagnostics, or solely to defrost a windshield are excused; school buses and commercial-passenger or transit vehicles may idle up to thirty consecutive minutes for passenger heating or cooling; idling to protect employee health during roadway construction, at airports as ground-support equipment, in rented vehicles operated by someone other than the owner, or in an armored vehicle guarding cargo is excused; a sleeper-berth idling for a government-mandated rest period is excused if the truck is more than two miles from an external power hookup; and heavy vehicles over 14,000 pounds with a 2008-or-newer low-NOx diesel or natural-gas engine certified at 30 grams of NOx per hour or less are exempt.

Outside those defenses, § 12-270(d)(1) makes a violation a Class C misdemeanor punishable by a fine of up to $500, with each day of violation a separate offense, and (d)(2) lets the city pursue abatement, injunctive relief, administrative adjudication, or license revocation in addition to the criminal fine.