N.Y. Vehicle & Traffic Law § 223
3. The commissioner, in consultation with the commissioner of the division of criminal justice services, shall establish a motor vehicle theft prevention program to be known as the "Watch Your Car Program," which shall include the issuance of official decals to identify motor vehicles that are not normally operated between the hours of 1:00 A.M. and 5:00 A.M. Participation in the program shall be voluntary in nature and shall involve the following:
(b)