Although provincially-established, the OPB has roles and responsibilities under both federal and provincial legislation applicable to corrections, including:
- Corrections and Conditional Release Act, S.C. 1992, c. 20;
- Prisons and Reformatories Act, R.S.C., 1985, c. P-20;
- Youth Criminal Justice Act, S.C. 2002, c.1;
- Ministry of Correctional Services Act, R.S.O. 1990, c. M.22; and
- Regulation R.R.O. 1990, Reg. 778.