Clean Truck Check Credentialed Tester

Clean Truck Check in Greencastle, IN

1 credentialed tester in Greencastle.

Testers in Greencastle

Nearest in-person tester to Greencastle

The closest CARB-credentialed Clean Truck Check tester is SNS LOGISTICS INC TESTAR ACOUNT in Indianapolis, Indiana — about 42 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Putnam 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
26
Trucking employees
201

Source: FMCSA MCMIS carrier census, US Census County Business Patterns 2021.

Freight corridors near Greencastle

Greencastle sits on I-70, US-231, US-36, US-40, SR-236 and SR-240. 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 Greencastle. Useful for routing a service stop around your CTC test.

+5 more within 25 miles.

Source: © OpenStreetMap contributors. Last updated 2026-05-26.