N.Y. Gen. Bus. Law § 62
On purchasing any pig or pigs of metal, bronze or brass castings or parts thereof, sprues or gates or parts thereof, copper wire or brass car journals, or metal beer kegs, such junk dealer shall cause to be subscribed by the person from whom purchased a statement as to when, where and from whom he or she obtained such property, also his or her identity as verified by a government issued identification card, age, residence by city, village or town, and the street and number thereof, if any, the driver's license number or information from a government issued identification card, if any, of such person, and otherwise such description as will reasonably locate the same, his or her occupation and name of his or her employer and place of employment or business, which statement the junk dealer shall forthwith file in the office of the chief of police of the city or village in which the purchase was made, if made in a city or incorporated village, and otherwise in the office of the sheriff of the county in which made. The junk metal dealer shall also make and retain a copy of the government issued photographic identification card used to verify the identity of the person from whom the junk metal was purchased and shall retain this copy in a separate book or register for two years from the date of purchase of the junk metal and include an additional copy of this identification with the information required to be transmitted to the chief of police or sheriff pursuant to this section.
N.Y. Gen. Bus. Law § 62