One of the most commonly asked questions about car accidents is who pays for the medical bills caused by them. Although this question seems like it would have an easy answer, this is not always the case. Many persons assume that the person at fault for the accident pays the bills. Although this seems logical, it is not how it works in New Jersey, since it is a no-fault state. As a result, all drivers in New Jersey must purchase Personal Injury Protection (PIP), which pays for medical expenses, regardless of who is actually at fault for the car accident.