Delivering Excellence, One Test at a Time.
Smog Brothers is committed to setting the standard for excellence in mobile diesel emissions testing throughout Southern California. Built on professionalism, integrity, and exceptional customer service, we bring certified diesel emissions testing directly to your location with unmatched convenience. Whether you need testing for a single vehicle or an entire fleet, we’re dedicated to delivering a seamless, reliable experience every time.
Our Services
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Smoke Opacity Testing
Certified snap acceleration testing for applicable heavy-duty diesel vehicles under California’s Clean Truck Check program. Testing is performed using a calibrated smoke opacity meter to accurately measure exhaust smoke levels and verify compliance with state emissions standards.
OBD Testing
Official OBD emissions compliance testing for vehicles enrolled in California’s Clean Truck Check program. Calibrated diagnostic equipment verifies emissions system readiness, scans for active fault codes, and confirms compliance with CARB regulations to keep your vehicle legally operating.
Service Areas
Proudly Servicing Riverside County, San Bernardino County, Orange County, and San Diego County.
