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ANY 2012 & Older Diesel Vehicle and Diesel Vehicles more than 14,000 lbs 

Smoke Opacity Testing for Heavy-Duty Vehicles

Ensure your fleet meets California’s emissions standards

At CA Truck Compliance Group, we provide professional smoke opacity testing services designed to ensure your heavy-duty vehicles meet California Air Resources Board (CARB) regulations. Our team uses state-of-the-art equipment to measure exhaust opacity and verify compliance with air quality standards.

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What is Smoke Opacity Testing?

Smoke opacity testing measures the density of exhaust smoke emitted from your vehicle. This test determines whether your truck meets California’s emissions standards, which are critical for maintaining compliance and reducing environmental impact.

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