N.Y. Gen. Bus. Law § 897

§ 897. Sale of a firearm, rifle or shotgun at a gun show. 1. A\nnational instant criminal background check shall be conducted and no\nperson shall sell or transfer a firearm, rifle or shotgun at a gun show,\nexcept in accordance with the provisions of 18 U.S.C. 922(t), provided\nthat before delivering a firearm, rifle or shotgun to any person, either\n(a) the National Instant Criminal Background Check System (NICS) or its\nsuccessor has issued a "proceed" response to the seller or transferor,\nor (b) thirty calendar days shall have elapsed since the date the seller\nor transferor contacted NICS to initiate a national instant criminal\nbackground check and NICS has not notified the seller or transferor that\nthe transfer of the firearm, rifle or shotgun to such person should be\ndenied.\n 2. No person shall offer or agree to sell or transfer a firearm, rifle\nor shotgun to another person at a gun show and transfer or deliver such\nfirearm, rifle or shotgun to such person or person acting on his or her\nbehalf thereafter at a location other than the gun show for the purpose\nof evading or avoiding compliance with 18 U.S.C. 922(t).\n 3. Any person who knowingly violates any of the provisions of this\nsection shall be guilty of a class A misdemeanor punishable as provided\nfor in the penal law.\n