N.Y. General City Model Law § 62
Every corporation, joint-stock company or association formed for or principally engaged in the conduct of aviation, steamboat, ferry (except a ferry company operating between any of the boroughs of the city under a lease granted by the city), or navigation business or formed for or principally engaged in the conduct of two or more of such businesses, except a corporation, joint-stock company or association subject to taxation under a local law of the city, imposed on utilities and vendors of utility services, shall pay for the privilege of carrying on its business in the city, a tax which shall be equal to five-tenths of one per centum upon its gross earnings from all sources within the city, excluding earnings derived from business of a character other than wholly intra-city. Provided, however, gross earnings from transportation business both originating and terminating within the city and traversing both the city and any other city, any state or states or any country shall be subject to the tax imposed by this section and such earnings shall be allocated to the city in the same ratio that the mileage within the city bears to the total mileage of such business.
N.Y. General City Model Law § 62