The American Kennel Club created the FSS® breed classification to allow these purebred breeds to continue to develop while providing them with the security of a reliable and reputable avenue to maintain their records. At this time, FSS® breeds cannot be registered with the AKC. However, some of these breeds can compete in AKC-sponsered Companion Events - Obedience, Agility, Tracking and Rally.

• American English Coonhound
• Appenzeller Sennenhunde
• Argentine Dogo
• Azawakh
• Belgian Laekenois
• Bergamasco
• Black and Tan Coonhound
• Bluetick Coonhound
• Bolognese
• Boykin Spaniel
• Bracco Italiano
• Cane Corso
• Catahoula Leopard Dog
• Caucasian Mountain Dog
• Central Asian Shepherd Dog
• Cesky Terrier
• Chinook
• Coton de Tulear
• Czechoslovakian Wolfdog
• Dogue de Bordeaux
• Entlebucher Mountain Dog
• Estrela Mountain Dog
• Finnish Lapphund
• German Spitz
• Grand Basset Griffon Vendéen
• Icelandic Sheepdog
• Irish Red and White Setter
• Kai Ken
• Karelian Bear Dog
• Kooikerhondje
• Lagotto Romagnolo
• Lancashire Heeler
• Leonberger
• Mudi
• Norwegian Buhund
• Norwegian Lundehund
• Perro de Presa Canario
• Peruvian Inca Orchid
• Portuguese Podengo
• Portuguese Pointer
• Pumi
• Pyrenean Shepherd
• Rafeiro do Alentejo
• Rat Terrier
• Sloughi
• Spanish Water Dog
• Stabyhoun
• Thai Ridgeback
• Tosa
• Treeing Tennessee Brindle
• Treeing Walker Coonhound
• Xoloitzcuintli