| Naics index | Naics index description |
|---|---|
| 922140 | Houses of correction (except private operation of) |
| 922140 | Jails (except private operation of) |
| 922140 | Penitentiaries (except private operation of) |
| 922140 | Prison farms (except private operation of) |
| 922140 | Prisons (except private operation of) |
| 922140 | Reformatories (except private operation of) |
| 922150 | Pardon boards and offices |
| 922150 | Parole offices, publicly administered |
| 922150 | Probation offices, publicly administered |
| 922150 | Public parole offices |