Idle Reduction Laws and Incentives in Delaware

The list below contains summaries of all Delaware laws and incentives related to idle reduction.

Laws and Regulations

Idle Reduction Requirement

On-road heavy-duty motor vehicles with a gross vehicle weight rating of greater than 8,500 pounds may not idle for more than three consecutive minutes when the vehicle is stationary. Violators are subject to penalties of up to $500 for each offense. Heavy-duty vehicles subject to this regulation include long-haul and delivery trucks as well as transit and school buses. Emergency fire, rescue, and lifesaving vehicles are exempt. Additional exemptions may also apply.

(Reference Delaware Administrative Code Title 7, Section 1145-5.0)

State Incentives

Idle Reduction Weight Exemption

Any motor vehicle equipped with qualified idle reduction technology may exceed the state gross, axle, tandem, or bridge weight limits by up to 400 pounds to account for the weight of the technology. The additional weight may not exceed the actual weight of the idle reduction unit. To qualify for the exemption, the vehicle operator must also be able to prove the weight of the idle reduction technology and demonstrate that the technology is fully functional.

(Reference Delaware Code Title 21, Chapter 45, Section 4503f)

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