Datamars Equine Slim Chips are used by the American Jockey Club, Turkish Jockey Club, Dutch Stud Book and The Rheinland Pfalz-Saar International (RPSI) Registry. These microchips also meet the new USEF Rule(s): EQ103.2, HU101.2, and JP100.2 requirements. ISO compliant. The equine microchips do NOT include registration (unlike the small animal chips), owners can register their horses through the breed registry or Petlink.net for a nominal fee (one-time fee for lifetime registration).