Shorty Bull Standard (taken from bullbreedcoalition.com)
Height: 15″ and Under. Over 15″ at withers is disqualification from the show ring.
Weight: Approximately 40 pounds. Over 40 pounds is allowed but should be proportionate to height. Obesity is a fault.
Head: Round head with typical bulldog features. Eyes should be set far apart and not protrude. Nose should turn up slightly and may be black or liver coloured. Dudley noses are a cosmetic fault.
Bite: All dogs must be undershot but not to an extreme degree as to show lower canines when mouth is closed.
Eyes: Brown is preferred although eyes may be any colour. Eyes should have an oval shape and not protrude from the skull.
Ears: Cropped close to head. Dogs with uncropped ears should never be allowed in the show ring unless showing in EU countries.
Body: Body should be short from withers to tail. Chest should be broad for height and have a depth reaching the elbow. A compact look is desired,
width of front and hind quarters should be proportionate, not lending to a narrow rear. The chest may be broader than the rear, but narrow hindquarters are a fault.
Shoulders and Rump: Well rounded and well muscled. Lending to the appearance of strength. A slight rise over the loins is allowed, but not preferred and should never be to an extreme degree.
Legs: Heavy boned and in direct proportion to the body. Long legs in proportion to the body or fine bones are a serious fault. Cow hocks and pigeon toes are a fault.
Feet: Tight feet and straight pasterns are desired. Splayed feet and weak pasterns are a fault.
Tail: Tail must be short, either docked or screwed. No long tails permitted in the show ring.
Colour: All coat colours are acceptable with the exception of black and tan and merle.
Temperament: Good natured and even tempered. Extreme shyness or undue aggression is a fault. Shorty Bulls should never be aggressive to humans.