Recent Amendments to 301 CMR 41.00 Toxic or Hazardous Substance List

Please be aware that the official versions of all state statutes and regulations are only available through the State Bookstore or from the Secretary of State's Code of Massachusetts Regulations (CMR) Subscription Service.

Designation of Higher and Lower Hazard Chemicals

The Executive Office of Energy and Environmental Affairs (EOEEA) provides these files and this fact sheet below for the convenience of users. 

 

You can obtain official versions of all state statutes and regulations are only available through the State Bookstore or from the Secretary of State's Code of Massachusetts Regulations (CMR) Subscription Service.

New Higher Hazard Substances for 2017: Toluene Diisocyanates

As of January 1, 2017, 2,4-TDI (CAS 584-84-9); 2,6-TDI (CAS 91-08-7); and TDI Mixed Isomers (CAS 26471-62-5) are designated as Higher Hazard Substances (HHS), with a reporting threshold of 1,000 lbs. The designation follows a public hearing and formal 21-day public comment period as well as an additional 60-day public comment period. See the Response to Comments and the Small Business Impact Statement below.

EEA's Office of Technical Assistance and Technology (OTA) is available on a free and confidential basis to help companies affected by the lower reporting threshold to comply with the new requirements. Call (617) 626-1060 with reporting questions.

Additional Resources for New Higher Hazard Substances for 2017: Toluene Diisocyanates

New Higher Hazard Substances for 2016: Four Additional Higher Hazard Substances

As of January 1, 2016, 1-Bromopropane (n-Propyl Bromide (CAS 106-94-5)), Hydrogen Fluoride (CAS 7664-39-3), Cyanide Compounds (TURA #1016), and Dimethylformamide (CAS 68-12-2) are designated as Higher Hazard Substances (HHS), with a reporting threshold of 1,000 lbs. The designation follows a public hearing and formal 21-day public comment period. See the Response to Comments below.

EEA's Office of Technical Assistance and Technology (OTA) is available on a free and confidential basis to help companies affected by the lower reporting threshold to comply with the new requirements. Call (617) 626-1060 with reporting questions.

Additional Resources for New Higher Hazard Substances for 2016: Four Additional Higher Hazard Substances

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