The Transitional Services Division is responsible for carrying out the Department of Corrections' mission to reduce the risk of future criminal conduct in those offenders incarcerated in prison or on supervision in the community. The Division impacts over 30,000 felony offenders in the community and over 12,500 inmates in state prisons. This division includes the operation of community corrections, religious services, sentence computation, offender records, victim services, and institution programs such as: workforce development, education, cognitive programs, and addictions treatment programs.

Community corrections operates in partnership with local, county-operated community corrections agencies. The Department of Corrections operates community corrections in Linn and Douglas counties. Community corrections activities include supervision, community-based sanctions, and services directed at offenders who have committed felony crimes and have been placed under supervision by the courts (probation) or the Board of Parole and Post-Prison Supervision (parole/post -prison supervision).

With the passage of the Prison Reform and Inmate Work Act of 1994 (Ballot Measure 17), Oregon voters overwhelmingly launched the State of Oregon and the Department of Corrections in an unprecedented direction: they mandated, through a constitutional amendment, that all inmates should work or be engaged in a combination of work and workforce development activities, i.e., education and treatment, 40 hours per week.

The Offender Information and Sentence Computation (OISC) unit is responsible for the development and maintenance of offender records and the sentence calculation of inmates incarcerated under the authority of the Oregon Department of Corrections (DOC) at all of the state operated prisons.

Religious Services, the oldest correctional program, provides a wide continuum of worship services, study programs, music programs, serious illness/death notifications, and pastoral counseling opportunities to meet the mandates of the U.S. Constitution, Oregon Constitution and judicial decisions.