About Us

News

CHANGES TO HEAVY DUTY TRUCK INSPECTION PROGRAMS

Changes to Heavy Duty Trucks Inspection Program - VTC News

Changes to the Periodic Smoke Inspection Program (PSIP) and the Heavy-Duty Vehicle Inspection Program (HDVIP) may affect you.  The CARB Board approved a new opacity limit of 5  percent for heavy-duty vehicles equipped with diesel particulate filters  (DPFs).  Other amendments include additional smoke tester training  requirements and voluntary submittal of on-board diagnostic (OBD) data  in lieu of annual PSIP opacity tests.

The PSIP is an annual self-testing program for smoke opacity and is  applicable to California-based fleets of two or more heavy-duty diesel  vehicles.  HDVIP is a roadside inspection program conducted by the  California Air Resources Board (CARB) enforcement staff and is applicable to diesel and gasoline heavy-duty (HD) vehicles operating in  California over 6,000 pounds gross vehicle weight rating (GVWR).

Learn more at https://ww3.arb.ca.gov/msprog/truckstop/azregs/opacityfaq.htm

Contact Us