US lawMassachusettsRegulations103 CMR — Massachusetts Department of Correction103 CMR 421.00 — Department segregation units421.02103 CMR 421.02Statutory AuthorizationYear: 2026Length: 20 wordsOfficial source 103 CMR 421.000 is issued pursuant to M.G.L. c. 124, §§ 1(b) and (q) and M.G.L. c. 127, § 39.Previous103 CMR 421.01Next103 CMR 421.03