FORT LEE, N.J. (CBSNewYork) — Environmental officials in New Jersey are cracking down on vehicles and equipment left idling too long.

As WCBS 880’s Levon Putney reported, the state Environmental Protection Agency tied a recent spike in pollution levels around Fort Lee to construction equipment left idling too long at a site near the George Washington Bridge.

So the agency sent a letter out reminding the contractor of the state idling laws, preferring to educate over handing out fines.

“People need to be aware of it and consider what options they have for compliance,” said Mike Tunnel.

Tunnel is with the American Transportation Research Group and, speaking for truckers — are a main target of the laws that limit idling to three minutes — he said it’s good for them to save energy.

Tunnel said many trucks have emission-limiting technology, but thinks the state could help by adding more truck stop electrical hook ups for those resting on trips.

“You want to be able to power your air conditioner or heaters in the cab,” he explained.