Plano participates in the Texas Commission on Environmental Quality locally enforced motor vehicle idling rule, which prohibits heavy-duty diesel trucks over fourteen thousand pounds from idling longer than five consecutive minutes within North Central Texas.
Collin County is part of the Dallas-Fort Worth ozone nonattainment area. Plano adopted the TCEQ Locally Enforced Motor Vehicle Idling Limitations rule under 30 Texas Administrative Code Section 114.512, prohibiting unnecessary idling of diesel-powered vehicles weighing more than fourteen thousand pounds for longer than five minutes. Exemptions apply during traffic, when ambient temperatures fall below forty degrees or rise above ninety degrees Fahrenheit with sleeper berths in use, for emergency vehicles, and for power take-off operations. Enforcement is by Plano Police and code-enforcement officers; signage is posted at major distribution warehouses near Spring Creek and Legacy.
Idling a covered diesel vehicle beyond five minutes outside listed exemptions can trigger a Class C misdemeanor citation with fines up to five hundred dollars per occurrence, escalating with repeat offenses.
See how other cities in Collin County handle vehicle idling restrictions.
See how Plano's vehicle idling restrictions rules stack up against other locations.
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