REGISTRATON CODES COLOUR GCCF CODE (Old Code in Brackets) SOLID COLOURS Black 64 15 Blue 64 16 Red 64 15d Cream 64 17 Tortie 64 21 Blue Tortie 64 28 White blue eyes 64 14 White Orange eyes 64 14a White odd eyes 64 14b White Green eyes 64 14c SMOKE COLOURS Black smoke 64 36 Blue smoke 64 36a Red smoke 64 36d Cream smoke 64 36f Tortie smoke 64 36e Blue Tortie smoke 64 36g CLASSIC TABBY COLOURS Black classic Tabby (Brown) 64 41 (64 20) Blue classic Tabby 64 41a (64 20a) Red Classic Tabby 64 41d (64 19) Cream Classic Tabby 64 41f (64 20f) Tortie Classic Tabby 64 41e (64 20e) Blue Tortie Classic Tabby 64 41g (64 20g) MACKEREL TABBY COLOURS Black Mac Tabby (Brown) 64 44 (64 20) Blue Mac Tabby 64 44a (64 20a) Red Mac Tabby 64 44d (64 19) Cream Mac Tabby 64 44f (64 20f) Tortie Mac Tabby 64 44e (64 20e) Blue Tortie Mac Tabby 64 44g (64 20g) SILVER CLASSIC TABBY COLOURS Black Silver Classic Tabby 64 41s (64 18) Blue Silver Classic Tabby 64 41as (64 18a) Red Silver Classic Tabby 64 41ds (64 18d) Cream Silver Classic Tabby 64 41fs (64 18f) Tortie Silver Classic Tabby 64 41es (64 18e) Blue Tortie Silver Classic Tabby 64 41gs (64 18g) EMS CODE MCO n MCO a MCO d MCO e MCO f MCO g MCO w 61 MCO w 62 MCO w 63 MCO w 64 MCO ns MCO as MCO ds MCO es MCO fs MCO gs MCO n 22 MCO a 22 MCO d 22 MCO e 22 MCO f 22 MCO g 22 MCO n 23 MCO a 23 MCO d 23 MCO e 23 MCO f 23 MCO g 23 MCO ns 22 MCO as 22 MCO ds 22 MCO es 22 MCO fs 22 MCO gs 22 REGISTRATON CODES SILVER MACKEREL TABBY COLOURS Black Silver Mac Tabby 64 44s (64 18) Blue Silver Mac Tabby 64 44as (64 18a) Red Silver Mac Tabby 64 44ds (64 18d) Cream Silver Mac Tabby 64 44fs (64 18f) Tortie Silver Mac Tabby 64 44es (64 18e) Blue Tortie Silver Mac Tabby 64 44gs (64 18g) SILVER SHADED TABBY COLOURS Black Silver Shaded Tabby 64 43s (64 75) Blue Silver Shaded Tabby 64 43as (64 75a) Red Silver Shaded Tabby 64 43ds (64 75d) Cream Silver Shaded Tabby 64 43fs (64 75f) Tortie Silver Shaded Tabby 64 43es (64 75e) Blue Tortie Silver Shaded Tabby 64 43gs (64 75g) MCO ns 23 MCO as 23 MCO ds 23 MCO es 23 MCO fs 23 MCO gs 23 MCO ns 11 MCO as 11 MCO ds 11 MCO es 11 MCO fs 11 MCO gs 11 In the case of cats with white, the above colour coding is used, the initial colour (one or two letters) is followed by a pair of numbers that denote the AMOUNT of white present on the cat. For cats with bib, paws and tummy (minimal white, to include white spotting) the code is 09. For cats with larger amounts of white (up to around 50%) the code is 03. (for most purposes, these two codes will cover all cats) For cats that exhibit a very large amount of white, above 50%, where colour is present as minimal patches, the code 02 is used, described as harlequin in other registries. For cats that only show colour around the ears and tail, the code for van should be used, 01. As an example: Black = MCO n. Black and white (minimal white) = MCO n 09 Red Classic Tabby = MCO d 22 Red Classic Tabby and high white = MCO d 03 22 Blue Smoke = MCO as but Blue Smoke and White van pattern = MCO as 01 *NB – 1. It should be remembered that these are REGISTRATION codes only. Breeders should check the allowable amount of white in cats for the show bench, by consulting the breed standard. For example, whilst a cat with white spotting is able to be registered with the code 09, where the white is LESS than the accepted showable minimum (white on all four paws, bib and tummy) it will not be accepted as meeting the standard for show. Similarly, van patterned maine coons are not accepted by GCCF for showing, and harlequins will need to have a fully coloured tail, and sufficient colour to show pattern on the body, which may not be the case. *NB – 2. Other tabby patterns are TICKED – which is denoted with the use of 25 instead of 22 or 23 or SPOTTED which is 24. Neither are accepted for showing in GCCF, but it allows for them to be tracked in pedigrees. *NB – 3. The numbers for eye colours can also be used for high white cats, or cats who show unusual eye colours, which although not showable under GCCF (odd eyes occasionally do occur, for example, in cats other than solid whites) it still allows for these traits to be followed in pedigrees etc.