Carrollton vs Cedar Hill
How do vehicle idling restrictions rules compare between Carrollton, TX and Cedar Hill, TX?
Carrollton and Cedar Hill have similar restriction levels.
Carrollton, TX
Dallas County
Dallas County sits within the Dallas-Fort Worth ozone nonattainment area, where TCEQ Rule 30 TAC 114.512 limits commercial heavy-duty vehicle idling to five minutes. Locally adopted by Dallas County for fleets and contractors.
View full Carrollton rules →Cedar Hill, TX
Dallas County
Dallas County sits within the Dallas-Fort Worth ozone nonattainment area, where TCEQ Rule 30 TAC 114.512 limits commercial heavy-duty vehicle idling to five minutes. Locally adopted by Dallas County for fleets and contractors.
View full Cedar Hill rules →Key Facts Comparison
| Fact | Carrollton | Cedar Hill |
|---|---|---|
| Idling cap | Five minutes for heavy vehicles | Five minutes for heavy vehicles |
| Weight threshold | Over 14,000 pounds | Over 14,000 pounds |
| Cold-weather exemption | Below 40 degrees Fahrenheit | Below 40 degrees Fahrenheit |
| Authority | TCEQ 30 TAC 114.512 | TCEQ 30 TAC 114.512 |
Highlighted rows indicate differences between cities.
Carrollton FAQ
Does the idling limit apply to my passenger car?
No. The TCEQ rule covers heavy-duty diesel and gasoline vehicles over 14,000 pounds. Passenger cars and pickups are not subject to the five-minute cap in Dallas County.
Are school buses exempt?
School buses are exempt while actively loading or unloading passengers but must shut off when parked or staging away from students for more than five minutes.
Cedar Hill FAQ
Does the idling limit apply to my passenger car?
No. The TCEQ rule covers heavy-duty diesel and gasoline vehicles over 14,000 pounds. Passenger cars and pickups are not subject to the five-minute cap in Dallas County.
Are school buses exempt?
School buses are exempt while actively loading or unloading passengers but must shut off when parked or staging away from students for more than five minutes.
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