A:Yes, California is a “fault state,” meaning you may file a claim against an at-fault driver’s insurance company after an accident. Under California’s rule of pure comparative negligence, you do not need to prove that the other driver was entirely at fault or even that they were mostly at fault for the accident; you simply need to show that they contributed to the accident that caused your injuries/damages through negligence or intentional conduct in some way. However, if you are found to be partially at fault for the accident, your total recoverable award will be reduced by your at-fault percentage.