Almost every state, including California, has a process for reporting a potentially unsafe driver to its licensing office or department of motor vehicles. Law enforcement officers and physicians represent the majority of individuals submitting reports, although concerned citizens also can do so. If a state agency finds a complaint reasonable and credible, it may ask the reported driver to submit additional information, which could be used to help determine if a screening or assessment is justified.
Visit the California Department of Motor Vehicles website to learn more about the process and possible outcomes. You will be required to provide your name and contact information.