Allegheny County, PA Environmental Rules: Vehicle Idling Restrictions (2026)
Key Facts
- Applies to
- Heavy-duty diesel vehicles over 8,500 lbs
- Enforced by
- Allegheny County Health Department
- Second offense fine
- $100
- Third offense fine
- $500
- Adopted
- Ord. No. 40-03 (2003)
Summary
Allegheny County bans heavy-duty diesel trucks from idling longer than reasonably needed to reach normal operating temperature, enforced by the Health Department with escalating fines.
No person shall permit, cause, suffer or allow the engine of a heavy-duty diesel-powered motor vehicle to idle prior to, during layover between, or at the conclusion of, any trip or route for any period of time beyond that which is reasonably required to attain, or to secure from, normal operating conditions. The Board of Health shall promulgate rules and regulations, subject to the approval of the County Council, regarding a maximum allowable period of idling. Such rules and regulations shall also define exceptions to the maximum allowable period that consider extreme temperatures.
B. No person shall permit, cause, suffer or allow the engine of a heavy-duty diesel-powered motor vehicle to be accelerated while idling unless such action is taken in order to operate other equipment.[1] [1] Editor's Note: Former § 56-3, Idling of diesel-powered locomotives, which immediately followed this subsection, was repealed 4-19-2005 by Ord. No. 21-05.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4857026; v12 updated 2024-06-04; through 06-04-2024).
Full Breakdown
County Code Chapter 535 prohibits idling a heavy-duty diesel vehicle (over 8,500 lbs. GVW or capacity for more than 12 passengers) beyond the time reasonably needed to attain or come off normal operating conditions, and bars revving the engine while idling except to run other equipment. The Board of Health, with County Council approval, sets the exact maximum idling period and cold/hot-weather exceptions; emergency vehicles, mechanics performing diagnostics, and windshield defrosting are also exempt. The Department of Health enforces the chapter.
Violations & Fines
First offense draws a warning; a second violation costs $100 and a third $500, enforced by the Allegheny County Department of Health under § 535-4.
Frequently Asked Questions
Does the idling limit apply to my personal car?
Is there an exact time limit for idling?
Sources & Official References
Other rules in Allegheny County
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