California Clean Truck Check Testing— At Your Location.
Certified mobile emissions compliance testing for owner-operators, contractors, municipalities, diesel RV owners, and commercial fleets throughout Santa Cruz County, Monterey County, and Silicon Valley.
Fast. Mobile. Compliant.
- Certified Technician
- Mobile Service
- Fleet Services
- Professional Equipment
- Fast Scheduling
- Local Service
- Compliance Expertise
Why Redwood CTC
Built around your time, your trucks, and your compliance.
Owner-operated, fully mobile, and obsessed with showing up on time and getting it right.
We Come To You
Save time and avoid unnecessary travel. Testing happens at your yard, jobsite, or driveway.
Fast Scheduling
Flexible appointments — often same week. Early mornings and Saturdays available.
Professional Equipment
Reliable, certified OBD and emissions testing equipment built for commercial diesel.
Local Service
Based in Boulder Creek. Serving the Central Coast and South Bay every day.
Fleet Friendly
From a single truck to an entire fleet — efficient on-site testing without disrupting operations.
Compliance Focused
Helping customers stay CARB compliant and avoid registration holds and penalties.
Services
Professional mobile testing for every diesel.
From a single owner-operator's rig to large municipal and commercial fleets — we bring certified equipment directly to your location.
Clean Truck Check Testing
California emissions compliance testing for heavy-duty diesel vehicles.
OBD Testing
Accurate onboard diagnostics testing for 2013+ diesel engines.
Fleet Compliance Testing
Coordinated on-site testing for commercial fleets of any size.
Diesel RV Testing
Convenient mobile testing for diesel motorhomes and RVs.
Service Areas
Serving the Central Coast & South Bay.
From the redwoods of Boulder Creek down through Monterey and across Silicon Valley.
Trusted Local Service
What customers say.
"Erik came out to my yard on a Saturday and had me tested and compliant in under an hour. Professional all the way."
Mike R.
Owner-Operator, Watsonville
"We have 14 trucks. He worked through them efficiently without disrupting our schedule. Will absolutely use again."
Sandra L.
Fleet Manager, San Jose
"Painless. He explained the whole CTC process and got my motorhome registered the same day."
Dave K.
Diesel RV Owner, Scotts Valley
Ready to get tested?
Mobile California Clean Truck Check testing at your location. Call Erik or request a time that works for you.