US lawMassachusettsRegulations310 CMR — Massachusetts Department of Environmental Protection310 CMR 50.00 — Toxics use reduction50.70310 CMR 50.70User SegmentsYear: 2026Length: 26 wordsOfficial source 310 CMR 50.70 through 50.72, cited collectively as 310 CMR 50.70, set forth the criteria for classifying production units into user segments and designate user segments.Previous310 CMR 50.63Next310 CMR 50.71