No, leaving your car running unattended in Utah is illegal under Utah Code § 41-6a-1225, a Class C misdemeanor punishable by fines up to $750. Salt Lake City and Park City municipal codes further restrict idling near schools or sensitive areas, with 2026 enforcement expanding under Utah DEQ’s anti-idling pilot program targeting commercial fleets.
Key Regulations for Leaving Your Car Running Unattended in Utah
- Utah Code § 41-6a-1225 prohibits operating a motor vehicle unattended while the engine is running, with exceptions for remote-start systems or temporary stops (e.g., warming in extreme cold if the driver remains within 200 feet).
- Local ordinances in Salt Lake City (SLC 12.20.030) and Park City (PCMC 7.08.040) impose stricter limits near schools, hospitals, or residential zones, banning idling for over 5 minutes.
- DEQ’s 2026 Anti-Idling Rule (R307-210) targets commercial vehicles, mandating idle-reduction technologies for trucks over 10,000 lbs in designated air quality nonattainment areas, with penalties up to $1,000 per violation.
Violations are enforced by local law enforcement and DEQ inspectors, with repeat offenses escalating to vehicle impoundment under Utah’s 2024 traffic safety amendments. Exemptions exist for law enforcement, emergency vehicles, or mechanical repairs, but these require active supervision.