N.Y. Comp. Codes R. & Regs. tit. 19, § 332.1
A military voter shall not be required to register personally. An application for a military ballot shall constitute permanent personal registration whenever such registration is required. Such military voter shall be deemed registered under the rules and regulations prevailing under permanent personal registration and upon the filing of his application and the entering of his or her name in the appropriate register or on the registration records.