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Clean Truck Check in Greeley, CO
1 credentialed tester in Greeley.
Testers in Greeley
Nearest in-person tester to Greeley
The closest CARB-credentialed Clean Truck Check tester is Luna’s transportation in Thornton, Colorado — about 40 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.
Trucking activity in Weld County
Clean Truck Check applies to heavy-duty vehicles that operate in California — including out-of-state trucks based here that run loads west.
Trucking establishments
302
Trucking employees
2,083
Source: FMCSA MCMIS carrier census, US Census County Business Patterns 2021.
Freight corridors near Greeley
Greeley sits on I-25, US-34, US-34-Business, US-85, US-85-Business and CO-14. Trucks running these routes into California fall under CARB’s Clean Truck Check — Smart CTC lets them test remotely without leaving the road.
Source: OpenStreetMap (© OpenStreetMap contributors).
Nearby truck stops
OpenStreetMap-tagged truck stops, services areas, and HGV-marked fuel stations within 25 miles of Greeley. Useful for routing a service stop around your CTC test.
- QuikTrip665 31st Street, Evans, CO 80620QuikTrip · HGV: yes · ~5 mi
- Petro Stopping CentersPetro · HGV: yes · ~12 mi
- Buc-ee'sBuc-ee's · HGV: no · ~13 mi
- Love's Travel Stop3800 State Highway 56, Berthoud, CO 80513Love's · HGV: yes · ~14 mi
- Shell (Truck)11099 East I 25 Frontage Road, Firestone, CO 80504Shell · HGV: designated · ~21 mi
- Circle K10963 West I 25 Frontage Road, Longmont, CO 80504Circle K · HGV: designated · ~21 mi
- Phillips 66Phillips 66 · HGV: yes · ~21 mi
- Love's (Trucks)201 East Bison Highway, Hudson, CO 80642Love's · HGV: yes · ~24 mi
+4 more within 25 miles.
Source: © OpenStreetMap contributors. Last updated 2026-05-26.