Mass. Gen. Laws ch. 44 § 53D
Notwithstanding the provisions of section fifty-three, any city or town which accepts the provisions of this section may establish in the city or town treasury a revolving fund which shall be kept separate and apart from all other monies by the treasurer and in which shall be deposited the receipts received in connection with the conduct of self-supporting recreation and park services of said city or town. The principal and interest thereon shall be expended at the direction of the authority, commission, board or official of such city or town with said responsibility without further appropriation, but only with the written approval of the mayor in cities, or city manager in Plan E cities, or the selectmen in towns, or in towns which have adopted the town manager form of government the town manager and only for the purpose of operating self-supporting recreation and park services. The city auditor or town accountant shall submit annually a report of said revolving fund to the mayor, city council, city manager, board of selectmen or town manager for their review and a copy of said report shall be submitted to the director of the bureau of accounts; provided, however, that funds in said revolving fund shall not be used for the purpose of paying any wages or salaries for full-time, as defined in the guidelines issued by the director of accounts, recreation and park employees; provided, further, that the unreserved fund balance shall not exceed ten thousand dollars at the close of each fiscal year and any such amount in excess of ten thousand dollars shall be paid into the city or town treasury as provided in section fifty-three.
A city or town which has accepted the provisions of this section may, in like manner, revoke its acceptance; provided, however, that any city or town may require by by-law or ordinance, that the provisions of this section may be subject to annual authorization by a vote of the annual town meeting or city council.
Mass. Gen. Laws ch. 44, § 53D