Higher Hazard Substances

(1) For calendar year reporting period 2008 and thereafter, those substances identified as chemicals of special concern in 40 CFR Part 372.28 shall be designated as higher hazard substances. 2/27/26 (Effective 12/19/25) - corrected 301 CMR - 246.13 (2) For calendar year reporting period 2008 and thereafter, the following substances shall be designated as higher hazard substances: Trichloroethylene Cadmium Cadmium Compounds (3) For calendar year reporting period 2009 and thereafter, the following substance shall be designated as a higher hazard substance: Perchlorethylene (4) For calendar year reporting period 2012 and thereafter, the following substances shall be designated as higher hazard substances: Formaldehyde Hexavalent Chromium Compounds (5) For calendar year reporting period 2014 and thereafter, the following substance shall be designated as a higher hazard substance: Methylene chloride (6) For calendar year reporting period 2016 and thereafter, the following substances shall be designated as higher hazard substances: 1-Bromopropane Dimethylformamide Hydrogen fluoride Cyanide compounds (7) For calendar year reporting period 2017 and thereafter, the following substances shall be designated as higher hazard substances: 2,4 - Toluene diisocyanate 2,6 - Toluene diisocyanate Toluene diisocyanate - mixed isomers