 For persons who serve sentences in the state prison system (felons), they must apply to the Superior Court for a Certificate of Rehabilitation (CR).The CR does not remove or expunge anything negative from the individual's record; however, it places something positive on it.Among other requirements, the applicant must live in California and have done so for at least 5 consecutive years prior to applying, and been law-abiding for 7 years starting from the sooner of their release from prison or court supervision.