Tracy & Livermore SAE J1667 Diesel Opacity Testing – Mobile CARB Clean Truck Check for Pre-2013 Engines

Clean Truck Inspection Services in Tracy and Livermore

The California Air Resources Board (CARB) Heavy-Duty Vehicle Inspection Program (HDVIP) represents a critical regulatory framework designed to mitigate atmospheric particulate matter and nitrogen oxide emissions from commercial diesel-powered vehicles operating within California’s jurisdictional boundaries. Our certified mobile inspection services provide comprehensive CARB compliance testing for fleet operators, independent owner-operators, and commercial transportation entities throughout Tracy, Livermore, and the broader San Joaquin and Alameda County regions.

Understanding CARB Regulatory Compliance Requirements

The CARB HDVIP mandates periodic smoke opacity testing for all commercial vehicles with gross vehicle weight ratings exceeding 14,001 pounds that utilize compression-ignition (diesel) engines manufactured before the 2007 model year. This regulatory requirement stems from California Health and Safety Code Section 44011.6, which establishes enforceable emissions standards designed to protect public health and environmental quality throughout the state.

Our professional testing services employ Society of Automotive Engineers (SAE) J1667 protocols, utilizing calibrated opacity meters that measure light transmission through exhaust plumes during snap-acceleration procedures. These measurements quantify particulate emissions with scientific precision, ensuring accurate determination of regulatory compliance status.

Comprehensive Mobile Testing Servi