Heavy-Duty Vehicle Inspection and Maintenance Program.

Assembly Member Aguiar-Curry's amendment to California's Heavy-Duty Vehicle Inspection and Maintenance Program establishes December 31, 2026, as the deadline for the State Air Resources Board's first biennial report on program implementation, replacing the previous requirement of submission within four years of full program deployment.

The report must detail enforcement activities, operational downtime periods, estimated emissions reductions, and an analysis of cost-effectiveness. This reporting requirement applies to the inspection and maintenance program for non-gasoline heavy-duty vehicles exceeding 14,000 pounds, which includes both California-registered vehicles and out-of-state vehicles operating on California roads. The program maintains existing exemptions for zero-emission vehicles, authorized emergency vehicles, military tactical vehicles, and new vehicles meeting stringent emissions standards.

The underlying program continues to require vehicle testing, compliance certification, and enforcement mechanisms administered through coordination between the State Air Resources Board, Department of Motor Vehicles, and California Highway Patrol. Vehicle owners must address cited deficiencies within specified timeframes - 45 days for most vehicles and 75 days for agricultural vehicles. The program allows streamlined compliance processes for fleet owners with established compliance records while maintaining testing requirements.