No, leaving a car running unattended is illegal in Oregon under ORS 811.140, with exceptions for remote-start systems and emergencies. Portland’s Bureau of Transportation enforces stricter idle-reduction ordinances, and 2026 state regulations may expand anti-idling penalties for commercial vehicles.
Key Regulations for Leaving Your Car Running Unattended in Oregon
- ORS 811.140 prohibits operating a vehicle unattended while the engine is running, with penalties up to $250 for violations.
- Portland City Code 16.20.500 bans idling for more than 5 minutes in residential zones, enforced by PBOT, with fines escalating for repeat offenses.
- HB 2664 (2025) introduces 2026 compliance deadlines for commercial fleets, mandating idle-reduction technology in vehicles over 10,000 lbs.
Exceptions include using remote-start systems with the vehicle within 50 feet or during active law enforcement, emergency, or utility repairs. Local jurisdictions may impose additional restrictions, particularly in high-pollution zones. Violations in Portland’s East Multnomah County may trigger enhanced air quality enforcement by the Oregon Department of Environmental Quality.