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Heavy Duty Vehicle Idling Law

NYS Environmental Conservation Law, 6 NYCRR, Subpart 217-3, prohibits heavy duty vehicles, including non-diesel and diesel trucks and buses with a gross vehicle weight rating of more than 8,500 pounds, from idling for more than five minutes at a time. The idling regulation is enforced by DEC Conservation Officers. You may be fined from $500 to $18,000 in the case of a first violation.

Exceptions are when your vehicle is:

  • Stuck in traffic
  • Idling for maintenance purposes
  • Powering an auxiliary function or apparatus, such as a concrete tumbler
  • Involved in an emergency situation
  • A diesel-fueled truck operating in an ambient air temperature below 25°F for more than 2 hours

Less idling time is good for the environment because it reduces air pollution and noise while improving fuel economy. Less idling time also saves money for diesel operators and consumers and contributes to a cleaner atmosphere. Remember, only five consecutive minutes of idling are allowed. Your lungs will thank you for it.


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  • NYSDEC
    Division of Air Resources
    Heavy Duty Diesel
    625 Broadway
    Albany, NY 12233-3255
    518-402-8292
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