Clean truck testing in Glendora for diesel and alternative-fuel trucks over 14,000 lbs.
How it works
- Pick the days that work and tell us how many vehicles.
- We confirm a time. A $50 deposit holds it.
- We test at your yard or our shop, and submit results to CARB.
Why fleets use us
- CARB-credentialed testers
- Mobile testing, so your drivers keep working
- Free local yard visits
- Clear answers about what your trucks need
New to the program? Start with our 2026 Clean Truck Check guide.
Got trucks that need testing?
Pick a few days that work and we'll come to your yard. Local visits are free.
Or call 626-551-4555