Smoke opacity testing
On-site smoke opacity tests for your diesel vehicles, performed by a CARB-credentialed tester.
CARB-credentialed tester
We test your fleet where it works.
On-site smoke opacity testing for commercial fleets across Southern California — stay compliant with CARB requirements without pulling vehicles off the road.
MobileTesting at your location
CARBCredentialed tester
On the roadNo downtime driving to a shop
So CalServing all of Southern California
Our service
Smoke opacity testing at your location
How it works
Four steps, zero trips to a testing shop
- 1
Pick a date and place
Book online: choose a time and tell us where your vehicles will be.
- 2
We confirm
We confirm your appointment by email — or propose a time that fits our route.
- 3
We test on-site
Our tester comes to you and tests your vehicles where they are.
- 4
Results and invoice
You receive your results and an invoice, payable within 30 days.
Service area
Serving Southern California
We travel throughout Southern California. Our tester is CARB credentialed.
Payment terms
- Payment due within 30 days of invoice date.
- Checks payable to CarbonClear Fleet Inc.
- Late payments subject to a 15% monthly charge.
Ready to get your fleet tested?
Pick a time online and tell us where your vehicles are. We’ll confirm by email.