N.Y. AGM Law § 368

§ 368. Operating upon tails of horses unlawful. 1. Any person who cuts\nthe bone, tissues, muscles or tendons of the tail of any horse, mare or\ngelding, or otherwise operates upon it in any manner for the purpose or\nwith the effect of docking, setting, or otherwise altering the natural\ncarriage of the tail, or who knowingly permits the same to be done upon\npremises of which he is the owner, lessee, proprietor or user, or who\nassists in or is voluntarily present at such cutting, is guilty of a\nmisdemeanor, punishable by imprisonment for not more than one year, or\nby a fine of not more than five hundred dollars or by both. If a horse\nis found with the bone, tissues, muscles or tendons of its tail cut as\naforesaid and with the wound resulting therefrom unhealed, upon the\npremises or in the charge and custody of any person, such fact shall be\nprima facie evidence of a violation of this section by the owner or user\nof such premises or the person having such charge or custody,\nrespectively.\n 2. Any person who shows or exhibits at any horse show or other like\nexhibition in this state a horse, mare or gelding, the tail of which has\nbeen cut or operated upon in the manner referred to in section one\nhereof, is guilty of a misdemeanor, punishable by imprisonment for not\nmore than one year, or by a fine of not more than five hundred dollars,\nor by both; provided that the provisions of this section shall not apply\nwith respect to an animal the tail of which has been so cut or operated\nupon, if the owner thereof furnishes to the manager or other official\nhaving charge of the horse show or exhibition at which such animal is\nshown or exhibited an affidavit by the owner, or a licensed\nveterinarian, in a form approved by the state department of agriculture\nand markets, stating either that the tail of such horse was so cut prior\nto June first, nineteen hundred sixty-four, or that it was so cut in a\nstate wherein such cutting was not then specifically prohibited by the\nlaws thereof. Said affidavit shall, to the best of affiant's knowledge,\ninformation and belief, identify the animal with respect to sex, age,\nmarkings, sire and dam, and state either that the cutting was done prior\nto June first, nineteen hundred sixty-four, or the time and place of\nsuch cutting and the name and address of the person by whom performed.\nThe affidavit shall be subject to inspection at all reasonable times by\nany peace officer, acting pursuant to his special duties, or police\nofficer of this state, or by a designated representative of the\ncommissioner. In lieu of furnishing such affidavit to the manager or\nother official having charge of such horse show or exhibition, the owner\nof such horse may specify on the entry blank for the horse show or\nexhibition the name and address of a central registry office designated\nby the state department of agriculture and markets where such an\naffidavit has already been filed and is available for inspection.\n