since 1980
UKC American Pit Bull Terriers
AKC Staffordshire Bull Terriers
American Pit Bull Terrier or Staffordshire Bull Terrier

What's the difference?
Most obvious difference is size.
Jake is an average male American Pit Bull Terrier weighing about 70 pounds and 20 inches at the shoulder.
Louie is an average male Staffordshire Bull Terrier weighing about 37 pounds and 15 inches at the shoulder.

Both breeds have similar origins, a cross between bulldog & terrier, but generations of breeding on different continents
have separated them into two distinct breeds.
Ear cropping is a common practice with the APBT, although natural ears are acceptable. Dewclaws are often removed,
The SBT is left all natural. Dewclaws left on and ears uncropped.
SBT head is more apple shaped where the APBT is more wedge shaped. There are other differences but these are the most

The American Pit Bull Terrier is called American Staffordshire Terrier (or AmStaff) by the American Kennel Club. This
similarity with the name Staffordshire Bull Terrier is what causes a lot of the confusion between the two breeds.

Other names sometimes used for the American Pit Bull Terrier are American Staffordshire Terrier, AmStaff, Pit Bull, Pit
Bull Terrier, Pit Bulldog.
Other names sometimes used for the Staffordshire Bull Terrier are Staffy, Staffy Bull, Stafford, English Pit Bull.

breed standard for the APBT
breed standard for the SBT