Standard traffic accident report used in Colorado includes driver and vehicle identification, location, damages and a description of the accident. The code overlays A and B supplement the accident report with specific details on sequence of events, driver actions, roadway and environmental conditions, contributing factors and safety equipment. Overlay C pertains to federal motor carrier vehicle information.

The overlay contains codes used to describe accident details in the Washington Police traffic collision report.

The code overlay is used to decipher the South Dakota motor vehicle accident report.