Under California law, the driver of any vehicle involved in an accident must make a written report with the California Highway Patrol within 24 hours of the incident. If the accident involves an injury or death, it must be reported immediately to the agency of the city or county where the incident occurred. A car accident must be reported to the California DMV within 10 days if: (1) Anyone was injured or killed in the incident, and/or, (2) The crash resulted in property damage of more than $750.