N.Y. Comp. Codes R. & Regs. tit. 17, § 154-2.3
(b) F1 and F2 permits may be issued if for a vehicle registered in New York with a current F1 permit, or, for a vehicle which is eligible under subdivision (f) of this section.
(c) Replacement vehicles.
The highest gross weight for which a replacement vehicle or combination of vehicles may be issued a permit shall be the lower of the manufacturer recommended gross weight of the replacement vehicle or the legal weight of the vehicle being replaced. For vehicles owned and operated by municipalities and for F1 and F2 permits, the highest registration weight of the replaced vehicle shall be the registered weight of the vehicle in New York State at the time the first permit application was made.
(f) The total number of overweight divisible load permits issued by the department is prescribed in section 385(15)(f) of the Vehicle and Traffic Law, which provision authorizes the issuance of additional overweight divisible load permits effective January 1, 1994. These additional permits are to be issued on a lottery basis. The following provisions are applicable to additional permits to be so issued: