US lawMassachusettsRegulations103 CMR — Massachusetts Department of Correction103 CMR 421.00 — Department segregation units421.18103 CMR 421.18Review of DSU StatusYear: 2026Length: 27 wordsOfficial source Every inmate in a DSU shall be reviewed at 90 day intervals in accordance with the standards and procedures set forth in 103 CMR 421.09 through 421.17.Previous103 CMR 421.17Next103 CMR 421.19