Idle Reduction Laws and Incentives in Connecticut

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

State Incentives

Diesel Emissions Reductions Grants

The Connecticut Department of Energy and Environmental Protection (DEEP) provides U.S. Environmental Protection Agency Diesel Emissions Reduction Act (DERA) funding for projects that reduce diesel emissions in Connecticut. Funding for eligible project costs is available for government agencies organizations, and businesses that reduce diesel emissions by converting engines to alternative fuels, retrofitting exhaust controls, purchasing new vehicles, or adding idle reduction equipment. DEEP prioritizes projects that benefit environmental justice communities. Additional terms and conditions apply. For more information, including funding amounts and how to apply, see the DEEP DERA Grants website.

Idle Reduction Weight Exemption

A commercial vehicle equipped with idle reduction technology may exceed the state’s gross, total axle, total tandem, or bridge formula vehicle weight limits by up to 550 pounds to compensate for the additional weight of the idle reduction technology. The additional weight may not exceed the actual weight of the idle reduction unit.

(Reference Connecticut General Statutes 14-267c)

Laws and Regulations

Idle Reduction Requirement

School bus operators may not idle a school bus engine for more than three consecutive minutes except under the following conditions: uncontrollable traffic conditions or mechanical difficulties; operation of heating, cooling, safety or auxiliary equipment; outdoor temperatures below 20 degrees Fahrenheit; maintenance of a safe temperature for students with special needs; school bus repair; or receipt or discharge of passengers on a public highway or road. An infraction applies to violators of these regulations for the first offense and a fine from $100 to $500 applies for each succeeding offense.

(Reference Connecticut General Statutes 14-277)

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