(a) A nonprofit public museum permit shall allow the retail sale of alcoholic liquor by a nonprofit public museum only on land and in buildings that are subject to the care, custody and control of its board of trustees to be consumed on its premises by its patrons on any day on which such nonprofit public museum is open to visitors from the general public. Proceeds derived from such sales, except for reasonable operating costs, shall be used in furtherance of the charitable, literary and educational activities of such nonprofit public museum. Sections 30-9 to 30-13, inclusive, and 30-91, insofar as said sections refer to local regulations of sales, shall not apply to such permit. The annual fee for a nonprofit public museum permit shall be two hundred fifty dollars.

(b) “Nonprofit public museum” means any public museum organized for nonprofit, charitable, literary and educational purposes.