Los Angeles Mobile Smoke Opacity Testing
Fleet and diesel truck testing at your location
Struggling to fit a smoke opacity test into your schedule? Our mobile CARB-compliant smoke opacity testing is now available across Los Angeles and the Greater LA region.
From East LA to the Valley, our mobile unit brings fast, reliable, and regulation-ready diesel testing to your lot, yard, or parking area.
We test:
Box trucks and delivery vehicles
Government & commercial fleets
RVs & specialty vehicles
CARB Clean Truck Check vehicles of any year
We’ll meet you anywhere from Downtown LA to Long Beach, with quick turnaround and fully CARB-compliant documentation.
Why Choose Darling Smog?
Fully CARB-compliant
Fast, mobile appointments
No upsells, only testing
Same-day and emergency slots may be available—please call 626-551-4555 or inquire online
We’re licensed, friendly, and efficient. You’ll always know what to expect. We’re here to make compliance easy.
Ready to Book?
Whether you’re managing a fleet or just need your RV tested before hitting the road, we’re ready to meet you where you are.
