Mass. Gen. Laws ch. 32B § 10
This chapter, except sections seven A, eight A, nine A, nine C, nine D, nine E, nine F, eleven A, eleven B, eleven D, eleven E, eleven F and sixteen, may be accepted in a county, except Worcester county, by vote of the county commissioners; in a city having a Plan D or Plan E charter by majority vote of its city council, in any other city by vote of its city council, approved by the mayor, in a municipality having a town council form of government, by vote of the town council, subject to the provisions of the charter of such municipality; in a district, except as hereinafter provided, by vote of the registered voters of the district at a district meeting; in a regional school district by vote of the regional district school committee; in a veterans' services district by vote of the district board; in a welfare district by vote of the district welfare committee; in a health district established under section twenty-seven A of chapter one hundred and eleven by vote of the joint committee; and in a town by submission for acceptance to the registered voters in the form of the following question which shall be printed upon the official ballot to be used at an election: "Shall certain provisions of chapter thirty-two B of the General Laws, authorizing any county, except Worcester county, city, town or district to provide a plan of contributory group life insurance, group accidental death and dismemberment insurance, and group general or blanket hospital, surgical, medical, dental and other health insurance for certain persons in the service of such county, city, town or district and their dependents, be accepted by this town?" If a majority of the voters voting on the question shall vote in the affirmative, this chapter, except sections seven A, eight A, nine A, nine C, nine D, nine E, nine F, eleven A, eleven B, eleven D, eleven E, eleven F and sixteen, shall take effect in such town.
Notwithstanding the provisions of any general law to the contrary, neither the acceptance of this chapter nor the acceptance of any individual section thereof by a governmental unit shall be revoked or rescinded.
This chapter shall not apply to Worcester county nor to its employees, and they shall be eligible for coverage under the provisions of chapter thirty-two A. This action shall be a transferral and not a revocation or rescission.
Mass. Gen. Laws ch. 32B, § 10