US lawMassachusettsRegulations105 CMR — Department of Public Health105 CMR 121.00 — To control the radiation hazards of lasers, laser systems and optical fiber communication systems utilizing laser diode or light emitting diode sources121.014105 CMR 121.014ExemptionsYear: 2026Length: 20 wordsOfficial source Lasers and laser systems, while in transit or storage incident thereto, are exempt from the requirements of 105 CMR 121.012.Previous105 CMR 121.013Next105 CMR 121.015