US lawMassachusettsRegulations105 CMR — Department of Public Health105 CMR 450.00 — Minimum health and sanitation standards for DYS secure residential facilities450.390105 CMR 450.390Noise LevelsYear: 2026Length: 16 wordsOfficial source Noise levels shall be kept to a level not psychologically or physically harmful to the residents.Previous105 CMR 450.384Next105 CMR 450.502