2016 New York Laws
AGM - Agriculture & Markets
Article 5 - (Agriculture & Markets) DISEASES OF DOMESTIC ANIMALS; CALVES AND VEAL; PURE BRED STOCK; CERTIFICATES OF REGISTRY.
95-A - Animal ear tags or other identification.

  95-a. Animal ear tags or other identification. A person who without
  authorization by the commissioner, (a) cuts out, removes, obliterates or
  destroys a New York state department of agriculture and markets official
  ear tag or other official New York state identification tag,  device  or
  mark  on any cattle, camelid, deer, sheep, goats or swine, as defined in
  this article, other than such identification which may be used  for  the
  owner's own records in the state of New York, or (b) inserts or attaches
  to  the  ear  of  any  cattle,  camelid, deer, sheep, goats or swine, as
  defined in this article, in the state of  New  York  a  New  York  state
  department  of agriculture and markets official ear tag or inserts in or
  attaches  to  any  such  animal  any  other  official  New  York   state
  identification  tag, device or mark other than such identification which
  may be used for the owner's own records that has not  been  duly  issued
  for said animal by the department is guilty of a misdemeanor.