US lawMassachusettsRegulations105 CMR — Department of Public Health105 CMR 650.00 — Hazardous substances650.002105 CMR 650.002AuthorityYear: 2026Length: 19 wordsOfficial source 105 CMR 650.000 is adopted under the authority of M.G.L. c. 94B and 111, §§ 3, 5 and 6.Previous105 CMR 650.001Next105 CMR 650.003