The Collision Investigation Unit (CIU) was established March 2, 2011, in the Enforcement and Planning Division. The unit is the result of combining two programs: Accident Investigation (AI) Training and Multidisciplinary Accident Investigation Team (MAIT). The CIU will continue to develop this site as a means to provide responses to frequently asked questions, on-line publications, training information, and more.
The unit is responsible for providing advice on coding issues; revising Highway Patrol Manual (HPM) 110.5, Collision Investigation Manual; HPM 110.1, MAIT Operations Manual; the CHP 555, Traffic Collision Report; the Traffic Accident Reconstruction Specialist Program; and all phases of accident investigation training. We are also assisting in the further development of the California Automated Reporting System (CARS).