Heavy-Duty Diesel Opacity Testing

We Provide Certified Opacity Testing For Heavy-Duty Diesel Trucks, Rail Yard Equipment, And Port Vehicles — All On-Site At Your Location. Fully CARB-Compliant With Official Documentation And Fast Turnaround. No Travel Fees.

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Service Highlights

Our opacity tests meet the latest CARB requirements and are ideal for specialty diesel applications operating in ports, rail yards, or large fleets.

$250 per vehicle

By appointment only

Designed for trucks not supported by OBD testing

We file all paperwork with CARB

Who Needs This

Heavy-duty trucks not supported by OBD

Port, terminal, or off-road diesel vehicles

Specialty equipment and older fleet trucks