Massachusetts Agricultural Zoning Protections Under Chapter 40A

MGL Chapter 40A Section 3 limits municipal zoning authority over agricultural activities. The provision states no zoning ordinance or bylaw shall regulate or restrict agricultural use of land for primary purpose of commercial agriculture, aquaculture, silviculture, horticulture, floriculture, or viticulture on parcels of more than five acres, or two acres if generating gross sales exceeding $1,000 per acre. Cities may still apply reasonable zoning to farm structures and signs but cannot prohibit agricultural use itself. The Chapter 61A current-use tax program provides additional incentives for keeping land in active agricultural use.

Local zoning ordinances purporting to ban protected agriculture on qualifying parcels are unenforceable and may be voided in court with potential attorney fee awards.