A person with a criminal history can register to vote if the following applies: if they are on parole, probation, mandatory supervision, under post-release community supervision, federal supervised release, or in a county jail. A person with a criminal history cannot vote if they are currently serving a state or federal prison term for the conviction of a felony. Once a prisoner is released, their right to vote is automatically restored, and they can visit RegisterToVote.ca.gov or fill out a paper registration form to register to vote.