What does each club give for Peso in the Boston Terrier?

FCI, Peso: under 11.4 kg; AKC, Peso: under 11.3 kg; UKC, Peso: under 11.3 kg; KC, Peso: under 11.5 kg; CKC, Peso: under 11.3 kg.

Boston Terrier breed standards compared

Each column is one club's published standard. An empty cell means the club says nothing on that point in our records.

Clubs compared: FCI, AKC, UKC, KC, CKC.

Size

Size
Measure	FCI	AKC	UKC	KC	CKC
Peso	under 11.4 kg	under 11.3 kg	under 11.3 kg	under 11.5 kg	under 11.3 kg
Rapporto altezza/lunghezza	No ruling	No ruling	No ruling	1	No ruling
Rapporto cranio/muso	over 3	over 3	over 3	over 3	over 3

Conformation

Conformation
Form	FCI	AKC	UKC	KC	CKC
Chiusura dentaleChiusura a tenaglia	Da standard (“The bite is even or sufficiently undershot to square the muzzle”)	Da standard (“The bite is even or sufficiently undershot to square the muzzle”)	Da standard (“meet in an even bite or one sufficiently undershot”)	Da standard (“bite even, or sufficiently undershot to square muzzle”)	Da standard (“Bite even or sufficiently undershot to square muzzle”)
Chiusura dentalePrognatismo inferiore	Alternativo (“even or sufficiently undershot to square the muzzle”)	Alternativo (“even or sufficiently undershot to square the muzzle”)	Alternativo (“or one sufficiently undershot to square the muzzle”)	Alternativo (“or sufficiently undershot to square muzzle”)	Alternativo (“or sufficiently undershot to square muzzle”)
Chiusura dentaleBocca storta	Difetto (“SEVERE FAULTS: Wry mouth”)	Difetto (“Serious Fault - Wry mouth”)	Difetto (“Serious Faults: Wry jaw”)	No ruling	No ruling
DentaturaDentatura completa	No ruling	No ruling	Da standard (“A full complement of strong, white, regular teeth”)	No ruling	No ruling
Portamento delle orecchieErette (dritte)	Da standard (“Small, carried erect, either natural or cropped”)	Da standard (“The ears are small, carried erect”)	Da standard (“They are carried erectly”)	Da standard (“carried erect and upright when alert”)	Da standard (“Carried erect, either cropped ..., or natural bat”)
Forma degli occhiRotondi	Da standard (“Wide apart, large, round and dark in colour”)	Da standard (“wide apart, large and round and dark in color”)	Da standard (“The large, round eyes are dark in color”)	Da standard (“Set wide apart, relatively large, round, dark in colour”)	Da standard (“Wide apart, large and round, dark in colour”)
Inserzione degli occhiDistanziati	Da standard (“Wide apart, large, round and dark in colour”)	Da standard (“The eyes are wide apart, large and round”)	Da standard (“dark in color and wide apart”)	Da standard (“Set wide apart, relatively large, round”)	Da standard (“Wide apart, large and round”)
Inserzione degli occhiProminenti	No ruling	No ruling	No ruling	Difetto (“Excessively prominent eyes highly undesirable”)	Difetto (“Eyes small or sunken; too prominent”)
Lunghezza del musoCorto	Da standard (“Muzzle: Short, square, wide and deep”)	Da standard (“The muzzle is short, square, wide and deep”)	Da standard (“The muzzle is short, wide and deep”)	Da standard (“Muzzle relatively short, square, wide, and deep”)	Da standard (“Muzzle: Short, square, wide and deep”)
Forma del musoQuadrato	Da standard (“Muzzle: Short, square, wide and deep”)	Da standard (“The muzzle is short, square, wide and deep”)	No ruling	Da standard (“Muzzle relatively short, square, wide, and deep”)	Da standard (“Muzzle: Short, square, wide and deep”)
Linea superioreOrizzontale	Da standard (“Top line: Level”)	Da standard (“The topline is level”)	Da standard (“The topline is level”)	Da standard (“Level topline with croup that curves slightly”)	No ruling
Linea superioreCarpata (arcuata)	No ruling	Difetto (“Serious Body Faults - Roach back, sway back, slab-sided”)	Difetto (“Serious Faults: Roach back. Sway back. Slab-sided”)	No ruling	Difetto (“Faults: ... roach back; sway back”)
Linea superioreInsellata	No ruling	Difetto (“Serious Body Faults - Roach back, sway back, slab-sided”)	Difetto (“Serious Faults: Roach back. Sway back. Slab-sided”)	No ruling	Difetto (“Faults: ... roach back; sway back”)
Attaccatura della codaBassa	Da standard (“TAIL: Set-on low, short, fine and tapering”)	Da standard (“The tail is set on low, short, fine and tapering”)	Da standard (“is set on low and must not be carried above the horizontal”)	Da standard (“Set on low; short, fine, tapering”)	Da standard (“Set-on low; short, fine and tapering”)
Lunghezza della codaCorta	Da standard (“Set-on low, short, fine and tapering”)	Da standard (“set on low, short, fine and tapering”)	Da standard (“The short, fine, tapering tail”)	Da standard (“Set on low; short, fine, tapering”)	Da standard (“Set-on low; short, fine and tapering”)
Lunghezza della codaSenza coda	No ruling	No ruling	Squalificante (“Disqualifications: Docked tail; no tail”)	No ruling	No ruling
Portamento della codaAlzata (allegra)	Difetto (“Gaily carried tail”)	Difetto (“Body Faults - Gaily carried tail”)	Difetto (“Fault: Gaily carried tail”)	Difetto (“never carried above horizontal”)	Difetto (“Faults: A long or gaily carried tail”)
ToraceProfondo	Da standard (“Chest: Deep with good width”)	Da standard (“The chest is deep with good width”)	Da standard (“The chest is deep, with good width”)	Da standard (“The chest is deep, well filled, and with good width”)	Da standard (“Deep with good width of chest”)
PiediPiede di gatto	Da standard (“Forefeet: Small, round and compact”)	Da standard (“The feet are small, round and compact”)	Da standard (“forefeet are small, round and compact”)	Da standard (“Round, small, compact, turning neither in nor out”)	Da standard (“Feet: Round, small, and compact”)
PiediAperti	Difetto (“Splay feet”)	Difetto (“Faults - Legs lacking in substance; splay feet”)	No ruling	No ruling	Difetto (“Faults: ... splay feet”)
GarrettiBen discesi	No ruling	No ruling	Da standard (“The hocks are well let down”)	Da standard (“hocks well let down”)	No ruling

Markings

Markings
Marking	FCI	AKC	UKC	KC	CKC
Lista	Da standard (“Required markings: White muzzle band, white blaze between the”)	Da standard (“white blaze between the eyes”)	Da standard (“a white blaze between the eyes”)	Da standard (“white muzzle connected to an even white blaze between the eyes”)	No ruling
Collare	No ruling	Da standard (“white collar, white forechest”)	Da standard (“a white collar and white on part or whole of the forelegs”)	Da standard (“white collar, breast”)	No ruling
Macchia sul petto	No ruling	Da standard (“white collar, white forechest”)	No ruling	Da standard (“white collar, breast”)	No ruling
Balzane	No ruling	Da standard (“white on part or whole of forelegs and hind legs below the hocks”)	Da standard (“white on part or whole of the forelegs and hind legs below the hocks”)	Da standard (“part or whole of forelegs, and hindlegs below hocks”)	No ruling

Cropping, docking and other procedures

Cropping, docking and other procedures
Procedure	FCI	AKC	UKC	KC	CKC
Taglio delle orecchie	Alternativo (“carried erect, either natural or cropped”)	Alternativo (“either natural or cropped to conform to the shape of the head”)	Alternativo (“may be left natural or cropped to conform to the shape”)	No ruling	Alternativo (“either cropped to conform the shape of the head, or natural bat”)
Caudotomia (taglio della coda)	Squalificante (“Docked tail”)	Squalificante (“Disqualify - Docked tail”)	Squalificante (“Disqualifications: Docked tail; no tail”)	No ruling	Squalificante (“Docked tail”)
Asportazione degli speroni	Alternativo (“The dewclaws may be removed”)	Alternativo (“The dewclaws may be removed”)	Alternativo (“Dewclaws may be removed from the forelegs”)	No ruling	No ruling

The law on these procedures differs by country. A listing here says nothing about whether one is legal where you live.

Boston Terrier colors and patterns

What each club's breed standard says about every Boston Terrier color and pattern. Point at a ruling to see the club's own wording.

Breed standards describe the Boston Terrier in Nero, Bianco, Seal e Mogano. Standard patterns: Bicolore, Tigrato e Tigrato inverso.

Mantello: rulings by club
Color or pattern	FCI	AKC	UKC	KC	KUSA
Nero	Da standard (“black with white markings”)	Da standard (“Black & White”)	Da standard (“Black, with white markings”)	Da standard (“black or seal with white markings acceptable”)	Da standard (“black with white markings”)
Bianco	Da standard (“white markings”)	Da standard (“white markings”)	Da standard (“white markings”)	Da standard (“white markings”)	Da standard (“white markings”)
Seal	Da standard (“seal”)	Da standard (“Seal & White”)	Da standard (“Seal”)	Da standard (“black or seal with white markings acceptable”)	Da standard (“seal”)
Mogano	Da standard (“Brindle”)	Da standard (“Brindle & White”)	Da standard (“Brindle”)	Da standard (“Mahogany Brindle & White”)	Da standard (“Brindle”)
Albino	Non riconosciuto	Squalificante	Squalificante (“albinism”)	Non riconosciuto	Non riconosciuto
Blu	Squalificante (“Grey or liver colours”)	Squalificante	Squalificante (“gray or liver colors”)	Non riconosciuto (“Blue & White”)	Squalificante (“Grey or liver colours”)
Lilla	Non riconosciuto	Squalificante	No ruling	Non riconosciuto	Non riconosciuto
Cioccolato	Non riconosciuto	Squalificante	No ruling	Non riconosciuto	Non riconosciuto
Fegato	Squalificante (“Grey or liver colours”)	Squalificante	Squalificante (“gray or liver colors”)	Non riconosciuto (“Red & White”)	Squalificante (“Grey or liver colours”)
Rosso	Non riconosciuto	Squalificante	No ruling	Non riconosciuto	Non riconosciuto
Patterns
Bicolore	Da standard (“Brindle, seal or black with white markings”)	Da standard (“Brindle, seal, or black with white markings”)	Da standard (“Brindle, Seal, or Black, with white markings”)	Da standard (“with white markings”)	Da standard (“Brindle, seal or black with white markings”)
Tigrato	Da standard (“Brindle is preferred”)	Da standard (“Brindle & White”)	Da standard (“Brindle is preferred”)	Da standard (“Brindle: being a mixture of any shade of brown and black”)	Da standard (“Brindle is preferred”)
Tigrato inverso	Da standard (“Brindle is preferred”)	Da standard (“Brindle & White”)	Da standard (“Brindle is preferred”)	Da standard (“Brindle: being a mixture of any shade of brown and black”)	Da standard (“Brindle is preferred”)
Unicolore	Squalificante (“Solid black, solid brindle, or solid seal without required white markings”)	Squalificante (“Solid black, solid brindle or solid seal without required white markings”)	Squalificante (“Solid seal, black or brindle without the required white markings”)	Non riconosciuto	Squalificante (“Solid black, solid brindle, or solid seal without required white markings”)
Merle	No ruling	No ruling	No ruling	Non riconosciuto	No ruling
Doppio merle	No ruling	No ruling	No ruling	Non riconosciuto	No ruling

Occhi: rulings by club
Color or pattern	FCI	AKC	UKC	KC	KUSA
Marrone scuro	Da standard (“dark in colour”)	Da standard (“dark in color”)	Da standard (“dark in color”)	Da standard (“dark in colour”)	Da standard (“dark in colour”)
Blu	Squalificante (“Eyes blue in colour or any trace of blue”)	Squalificante (“Eyes blue in color or any trace of blue”)	Squalificante (“Any trace of blue in eyes”)	No ruling	Squalificante (“Eyes blue in colour or any trace of blue”)
Patterns
Eterocromia settoriale	Squalificante (“any trace of blue”)	Squalificante (“any trace of blue”)	Squalificante (“Any trace of blue in eyes”)	No ruling	Squalificante (“any trace of blue”)

Tartufo: rulings by club
Color or pattern	FCI	AKC	UKC	KC	KUSA
Nero	Da standard (“Black and wide”)	Da standard (“black and wide”)	Da standard (“black and wide”)	Da standard (“nose black”)	Da standard (“Black and wide”)
Tartufo Dudley	Squalificante (“Dudley nose”)	Squalificante (“Dudley nose”)	Squalificante (“Dudley nose”)	No ruling	Squalificante (“Dudley nose”)

What the rulings mean

Da standard: Described by the club's breed standard.
Squalificante: The club's breed standard disqualifies an animal of this color or pattern.
Non riconosciuto: The club does not accept this color or pattern for the breed.

Color changes

How a Boston Terrier's colors can change over its life.

Nerochanges toRuggine
Mantello · Con lo stato corporeo · can change back
Nerochanges toGrigio
Mantello · Progressivo
Nerochanges toMarrone
Mantello · Al sole · can change back
Biancochanges toRoano
Mantello · Con l'età · from 2 weeks
Nerochanges toTartufo d’inverno
Tartufo · Con la stagione · can change back
Nerochanges toRosa
Tartufo · Con la stagione · can change back

Sources

Each ruling comes from the club's published breed standard or color list.

Published standards

Back to the Boston Terrier guide Grooming styles for the Boston Terrier