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Summary of N.J. Idling Requirements for Diesel-Powered Motor Vehicles, N.J.A.C. 7:27-14
Revisions effective July 2, 2007

All vehicles may idle for three minutes with the following exceptions:

  • May idle for up to 15 consecutive minutes when the vehicle has been stopped for 3 or more hours and ONLY if temperature is <25 degrees F*
  • Buses may idle while actively discharging or picking up passengers for 15 consecutive minutes in a 60 minute period*
  • As of May 1, 2008, no idling is allowed in a parking space with available electrification technology

Three minute idling limit does NOT apply to:

  • Motor vehicles stopped in traffic
  • Motor vehicles whose primary power source is utilized in whole or in part for necessary and prescribed mechanical operations such as refrigeration units for perishable loads, hydraulic lifts, “cherry pickers”,  or similar equipment
  • Motor vehicles waiting to be examined by state or federal motor vehicle inspectors or motor vehicles while being repaired
  • Vehicles that are actively performing emergency services, such as fire, police, snow removal, and utility vehicles
  • A motor vehicle with a sleeper berth being used in a non-residential area only until April 30, 2010*
  • Operation of auxiliary or alternate power systems for cabin comfort

*Please note that these requirements are new or modified as of July 2, 2007

PENALTIES:  For commercial vehicle and property owner, $250 for first violation, $500 for second violation, $1000 for third and each subsequent violation.

Gasoline-fueled vehicles: N.J.A.C. 7:27-15.8 prohibits gasoline-fueled vehicles from idling for more than 3 minutes with limited exceptions.

For further questions, call NJDEP’s Diesel Risk Reduction Team at (609) 292-7953.

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Last Updated: April 7, 2014

October 15, 2012