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, semis, and delivery vehicles
Government & commercial fleets
Buses, RVs & specialty vehicles
CARB Clean Truck Check vehicles
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 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.
