Massachusetts Makes Broad Changes to the Zoning Act Saturday, January 16, 2021 Year after year, the Massachusetts Legislature considers bills to change General Laws Chapter 40A, or the Massachusetts Zoning Act. Many prior changes were fairly minor, but on January 14, 2021, Governor Charlie Baker signed an act making some major changes to the Zoning Act. Several of the changes were taken from Governor Baker’s often-touted Housing Choice bill. Click here for the new legislation. Zoning Act changes start on page 35. Some of the broadest changes are in the definitions section of the Zoning Act. For example, the term “as of right” is now a defined term identifying activity that does not need discretionary zoning approval. These changes are helpful both to avoid litigation about what terms such as “multi-family housing” and “accessory dwelling unit” mean, and because municipalities often adopt defined terms and other language from the Zoning Act into their zoning codes to assure compliance with the law. Such common language can be helpful to businesses operating in multiple municipalities.