US lawMassachusettsRegulations105 CMR — Department of Public Health105 CMR 164.00 — Licensure of substance use disorder treatment programs164.110105 CMR 164.110Hours of OperationYear: 2026Length: 18 wordsOfficial source The Licensed or Approved Provider shall provide admission and services 24 hours per day, seven days per week.Previous105 CMR 164.108Next105 CMR 164.132