N.Y. Navigation Law § 57: Identification number of vessel

§ 57. Identification number of vessel. Every public vessel subject to

the provisions of this chapter shall be registered and display the

identification number assigned as set forth in section twenty-two

hundred fifty-one of the vehicle and traffic law. In addition to the

number assigned, each public vessel shall display the letters "PV" not

more than six inches above or below the identification number. The

letters "PV" shall be not less than five inches in height and maintained

in a legible condition so that the letters, "PV", are readily

discernible during daylight hours at a distance of two hundred feet. It

shall be the duty of every owner to register and display numbers as

herein indicated. Violation of this section shall be a violation

punishable by a fine of not less than twenty-five nor more than one

hundred dollars.