Where can one find out about car seat laws?

The best place to find out about car seat laws is from the source, that is, your state's website. The exact location of this information online will depend on the state, but often the best information is available from the State Police or State Troopers tasked with highway patrol. Contacting your local law enforcement or State Police barracks by phone is another good way to get information, and many law enforcement organizations will do promotions with in person car seat safety checks and demonstrations free of charge at local parks, schools or other public places.