 Upon noticing similarities in coat and body types, Chiefari began her own breeding program.The breed is recognized, under the shorter name York, by the recently founded World Cat Federation based in Germany, and with some differences from previously published standards, most of which seem to be lost.The breed is not recognized by any major, long-established international cat fancier organizations, such as The International Cat Association (TICA), the Cat Fanciers' Association (CFA) or Fédération Internationale Féline (FIFe), nor even US national groups such as the American Cat Fanciers Association (ACFA).