Related: Drivers Key to Cutting Idle Costs
ATRI Updates State and Local Idling Regulations List
The American Transportation Research Institute has published an update to its free compendium of state and local idling regulations.

The American Transportation Research Institute has published an update to its free compendium of state and local idling regulations.
Photo: Jim Park
The American Transportation Research Institute has published an update to the list of state and local idling regulations on its website.
The list is offered as part of an online compendium with detailed information and hyperlinks to each of the 65 state and local regulations that have been identified. ATRI also offers the list as a cab card with a consolidated listing of regulations that can be downloaded and carried in the glove box of a truck.
ATRIcontinues to monitor the development of idling regulations across the country and provides the compendium and cab card as a free service to help trucking companies and truck drivers comply with the myriad of state and local idling regulations.
Newly enacted idling regulations that are part of the update include:
Madison, Wisconsin, has a 5-minute idling limit with limited exemptions, one of which is if the temperature is less than 20ºF or more than 90ºF. Fines can range from $25 to $200.
Sandy City, Utah, has a 1-minute idling limit with limited exemptions. Violators will be given up to three warnings before a citation not exceeding $750 can be issued.
Other regulations now listed in the compendium include Newark, Delaware; Ithaca, New York; Logan, Utah; and Summit County, Utah.
“Even though enforcement tends to vary among jurisdictions, with areas such as California and New York City being more active, the regulations highlight communities that are concerned about emissions from idling vehicles,” said Mike Tunnell, ATRI’s director of environmental research. “We urge trucking companies to be aware of these regulations not only to comply and avoid fines but to be good neighbors in the communities in which they operate.”
More Fuel Smarts

Cummins Adjusts 2027 Engine Rollout After EPA Proposal
The engine maker will gradually introduce its new Model Year 2027 diesel engines while continuing to offer current models during the transition, citing the EPA's proposed emissions rule changes.
Read More →
EPA Proposal Could Ease 2027 Truck Costs and Buying Uncertainty
The proposal doesn't change the tougher NOx standard, but it would revise key implementation requirements that manufacturers say have driven up costs and complicated fleet purchasing decisions.
Read More →
Cummins, Paccar Ease DEF Derates After EPA Guidance
Updated diesel engine software gives truck operators more time to address emissions-system issues while staying compliant with EPA emissions standards.
Read More →
Maintenance in the Messy Middle Part 3: Biodiesel
Biodiesel can reduce emissions, improve fuel-system lubricity and use existing diesel infrastructure. But NACFE’s Messy Middle maintenance report says fleets must actively manage storage, cold-weather operation, filters and oil drain intervals to avoid problems.
Read More →
Enhance Fleet Performance with High-Efficiency Auxiliary Power Units
Drive sustainable cost savings while increasing driver comfort during short- and long-haul logistics operations.
Read More →
Maintenance in the ‘Messy Middle’ Part 2: Renewable Diesel Fuel
NACFE's latest Messy Middle Powertrain Service & Maintenance report says renewable diesel gives fleets an opportunity to reduce carbon emissions without changing trucks, fueling infrastructure or maintenance practices. But technicians still need to understand several important operational differences.
Read More →
The Diesel Engine Enters NACFE’s ‘Messy Middle’
NACFE’s new Messy Middle Powertrain Service & Maintenance report says keeping modern diesel engines running now depends as much on software, diagnostics and data as traditional mechanical service.
Read More →
DTNA Software Update Gives Truckers More Time Before DEF Derates Take Effect
The changes reflect EPA guidance aimed at reducing downtime caused by emissions-system faults while maintaining compliance requirements.
Read More →
New Agentic Predictive Maintenance Report Demonstrates How Degraded Aftertreatment Systems Waste Fuel
Questar analyzed a large mixed-class fleet and discovered it was wasting as much as $30 in fuel per vehicle, per day, because of mechanically degraded aftertreatment systems.
Read More →
New York City's Microhub Project is Delivering Results
Trucking, last-mile delivery companies, and environmental advocates like what they are seeing so far with New York's microhub program.
Read More →
