Idling cars, trucks, school buses, public and private transportation buses, and off-road construction vehicles/equipment all contribute to the degradation of local air quality. Current regulations limit engine idling for both diesel and gasoline vehicles to three minutes with limited exceptions. Violations can be issued by NJDEP, County Environmental Health Officers, or local police departments. Call the NJDEP 24-hour, toll-free hotline at (877) 927-6337 or WARN DEP or your local police department to report idling violations (please do not call 911).

	Summary of New Jersey's Idling Requirements
	Calculate Your Savings from Reduced Idling Heavy Duty Vehicles Light Duty Vehicles, e.g., Cars
	What Your Town Can Do About Idling
	Read our Frequently Asked Questions for additional information
	Read the Diesel Idling Regulations, N.J.A.C. 7:27-14
	Read the Gasoline/Car Idling Regulations, N.J.A.C. 7:27-15
	Who Can Enforce the Idling Laws?
	Nonroad Idling Fact Sheet Released to Provide Guidance to Construction Contractors