From on and after January 1, 1958, there is hereby imposed a tax of one per centum on the gross income or gross operating income of the following:
A.
Every utility doing business in the Incorporated Village of Northport, which is subject to the supervision of the New York State Department of Public Service and which has a gross income for the twelve months ending December 31, in excess of $500 except motor carriers or brokers subject to such supervision under Article 3-B of the Public Service Law.[1]
B.
Every other utility doing business in the Incorporated Village of Northport, which has a gross operating income for the 12 months ending December 31 in excess of $500.