CDCR uses the three-year conviction rate as its primary measure of recidivism, while arrests and returns to prison are supplemental measures. The three-year conviction rate for people who earned credits was 33.3%, compared with 45.6% for those who did not earn enhanced credits. The three-year conviction rate increased from 39.1% for people released in fiscal year 2019-20 to 39.5% for those released in 2020-21. People released to Post-Release Community Supervision had a three-year conviction rate of 48.9%, compared with 31.7% for those released to parole. By completing programs, incarcerated people can earn credits that move them toward parole, release and other milestones.