Mobile Clean Truck Check in Riverside County.

Riverside County is a mobile service area, not a CTCA office location. A county name alone does not confirm service availability for every address.

The exact location matters.

Use the actual location where the truck will be tested, not just the billing address. Include the city, ZIP code, entrance instructions and a contact who can provide access to the vehicle.

When the truck moves between a job site and a yard, tell us where it can reliably be available. Confirm any location change with the team before the appointment so the technician is not sent to a site the vehicle has already left.

Send the test details with the address.

For one vehicle

Have the engine model year, fuel type and CTC-VIS deadline ready. Mention a recent repair, warning light or earlier failed or not-ready result.

Check test preparation

For several vehicles

List the vehicles available at each address and the time window for the visit. Separate urgent deadlines and identify trucks needing a different inspection type.

Request a fleet plan

OBD and opacity are different appointments.

Review OBD testing for eligible OBD-equipped engines and smoke opacity plus visual inspection for eligible diesel engines. The engine's model year and fuel type matter more than a general description such as 'newer truck.'

Ask about alternative-fuel or specialty-engine requirements before selecting an appointment. Current service pricing and any fleet conditions should be confirmed for the actual test mix.

Coordinating Riverside with other Inland Empire yards?

Use a separate vehicle count and availability window for each location. A combined inquiry helps organize the request, but it should not imply one price or visit covers every yard.

Our Inland Empire fleet-scheduling page explains how to group a multi-location request. For reporting or account issues, see CTC-VIS support rather than booking an extra test without checking the record.

Ready to confirm your Riverside County visit?

Book a test or call with your ZIP code.

Need an answer before booking? Browse common testing questions. Our physical OBD testing location is in Huntington Beach.