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The Governing Council of the Cat Fancy

The UK's Premier Registration body


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GCCF Rules for the Registration & Showing of Cats

NB. The relevant rules for Breeders and new  owners  are covered in the first section (1-11)

Registration Explained

Thinking of having a kitten/cat?

Checking the registration details will enable you to get the right cat for your requirements.

GCCF Registers affect showing and breeding

Breed Advisory Committees (BACs), made up of all the Clubs responsible for that breed, have Registration Policies which dictate which register the kitten is registered on for the benefit of the breed.

FULL REGISTER (before 15 July 2016 registration number begins CS)

A cat/kitten resulting from an ideal mating to produce that breed; it can be shown, and if agreed by the breeder, it can be used for breeding.

SUPPLEMENTARY REGISTER (before 15 July 2016 registration number begins CSSR)

A cat/kitten resulting from a more mixed mating but nevertheless acceptable as an example of the breed; it can be shown, and if agreed by the breeder, it can be used for breeding.

EXPERIMENTAL REGISTER - discontinued 21 October 2015 (before being discontinued registration number begins CSEXP)

A cat/kitten of a relatively new breed which had Preliminary Status when it was registered. It can be both shown and bred from. It may or may not be eligible for Championship status depending on how far the breed has progressed since the cat/kitten was originally registered * (Original registration numbers are not altered even when a breed progresses).

REFERENCE REGISTER (before 15 July 2016 registration number begins CSREF)

A cat/or kitten from a mating regarded as an outcross for this breed (but not necessarily for other breeds). This cat/kitten is NOT ALLOWED to be shown and will not be intended for breeding except under very specifically controlled circumstances.

It is possible to progress upwards from the Reference Register with a minimum number of three suitable breeding generations (daughter, grand-daughter, great-grand-daughter before the great-great-great-granddaughter may go up to the next register), This is acceptable to a breeder with a well planned breeding programme, such as when developing a new breed, but not something that a new breeder should be considering.


In addition to the registers above which can affect breeding and showing, the suitability for breeding only can also be controlled by the Breeder with three additional registers :-

ACTIVE REGISTER - the breeder has registered the cat as suitable for breeding from. The cat/kitten can be also shown if it is on either than the Full or Supplementary Registers as above. Kittens produced may be registered with no restrictions provided the mate chosen is suitable according to the Registration Policy for the breed.


This forms a 'halfway house', applies only to cats on the Active register and is controlled by the Registration Policy for the Breed.

If a cat is on the Active Register but the registration form also dictates that it is on the Genetic Register (which will be printed on the registration form) then the cat can be bred from but there will some restriction on the registration of the kittens. It used for cats which are known to carry genes (a) of a undesirable genetic disorder or (b) of a colour or pattern, the spread of which within that breed is controlled. The animals themselves are fit and healthy or of a correct colour pattern and if mated to a suitable cat will produce some kittens which are suitable to be used to continue the line. Whether they are or not can be determined by a simple DNA test for the presence or absence of the undesirable gene. This register has been in use for some years but as there is an increase in the possibility of gene testing, it is likely to be used more widely to free cats for breeding that would otherwise have been banned because of possible inherited problems in the past. This has the beneficial effect of increasing the gene pool available without passing on the problem.

The requirements for the registration of the offspring from these cats are shown in the Registration Policy for the breed (see Recognised Breeds) and help can be obtained from the breeder, the Clubs catering for the breed and the relevant Breed Advisory Committee.

NON-ACTIVE REGISTER - this is determined by the breeder and is printed on the Registration form. The breeder wishes to control the breeding from the kitten/cat for various reasons.

(a) Most male kittens are sold as neutered pets, as the number of males required to maintain a breed is vastly less then the number of females. Some of these are of superb show quality and, in the GCCF neutered and entire cats have same rights and equivalent titles throughout their show career up to UK Supreme cat.

(b) There may be some minor fault (such as a tail fault) which could be inherited and the cat would not be recommended for breeding (or showing as an entire cat) but it can be shown through the same system as a Pedigree Pet where the Standard of Points does not matter but condition and temperament are everything. They too can become a UK Supreme cat.

(c) There may some undesirable factor(s) that do not affect the kitten/cat itself but that it could have inherited from previous generations that makes the particular kitten/cat unsuitable for onward breeding, but can be shown as above.

(d) The breeder may wish to indicate that in his/her opinion that the kitten/cat will make an excellent pet but is not of sufficient quality to be used to improve the breed.

(e) The breeder may wish to assure themselves of the experience of the purchaser or the quality of the animal before allowing it to be bred from. This registration may be altered to Active ONLY at the request of the breeder. This can be done at a later date if the kitten/cat shows more promise etc but the new owner will need to get the agreement of the breeder who is the only person who can do this.

SO ASK THE SELLER HOW THE CAT/KITTEN IS OR WILL BE REGISTERED. Look at its Registration Number and note the letters that precede the numbers. The purpose for which the kitten/cat is to be kept (just as a pet, to be shown, to be bred from etc.) should be made very clear to the seller so that the most suitable example can be recommended.

* see GCCF Certificates and Titles and GCCF Cat Shows and Classes under Show Information

Changes to rules for registration and Change of register for cats over 2 years old

At the Council meeting on 22 October 2014, delegates agreed to changes to the rules Section 1 rules 1e and 4 relating to cats over 2 years of age. These changes will mean that a cat over 2 years of age can be registered on the non-active register without the need for Board approval nor require the additional fee in connection with such approval. Any cat over 2 years of age at time of first registration, or any cat over 2 years of age being changed from the non-active to the active register will require Board approval and will be subject to the fee in connection with such approval, currently £20.