US lawMassachusettsRegulations105 CMR — Department of Public Health105 CMR 650.00 — Hazardous substances650.016105 CMR 650.016Listing of IrritantsYear: 2026Length: 17 wordsOfficial source The Commissioner finds the following substances to be irritants: (1) Formaldehyde. (2) Urea-formaldehyde foamed-in-place insulation. (3) Snuff.Previous105 CMR 650.015Next105 CMR 650.017