Affiliated to the GCCF

Established 1985

The GCCF Maine Coon Registration & Breeding Policy

The Maine Coon Breed Advisory Committe have agreed a detailed breeding and registration policy. This has been approved by the GCCF. Updates to both breeding and registration policies are continually under review, please check this periodically for information.

Latest Updates to The GCCF Maine Coon Registration Policy - October 2023

Click Here to View the Latest Registration Policy Document

All Maine Coon cats registered on the Active Register from 1st January 2024 MUST be tested for the one known Maine Coon HCM gene (i.e., HCMmc: the A31P mutation in the MYBPC3 gene), SMA, and  PK-def. From 1 January 2024 Homozygous positive cats born after this date will not be eligible for Active registration. From 1 June 2024 Heterozygous cats born after this date will not be eligible for Active registration. (See Testing section below).

Imports - Maine Coons now require 8 DNA tests to be imported into the GCCF on the active (breeding) register, these are: HCMmc (Hypertrophic Cardiomyopathy Maine Coon Type, SMA (Spinal Muscular Atrophy), PKDef (Pyruvate Kinase Deficiency), Polydactyl, Chocolate, Cinnamon, Siamese (cs) and Burmese (cb) Colour Restriction.

Testing: The swab and microchip must be taken and verified by a vet. Please contact GCCF Office (Email: or telephone 01278 427575) for information on which test labs are approved for conducting these DNA diagnostic tests.


 Importing Neutered Cats from another organisation - DNA testing is not required for importing neutered cats providing all the following criteria have been met:

1. A Certificate of Neutering is supplied to including the cat’s details (registered name, date of birth, registration number, sex and microchip number (microchip number has been scanned and verified by the vet).

2. The cat does not exhibit any of the following traits: polydactyly (extra toes), Chocolate, Cinnamon and Siamese (cs) and Burmese (cb) colours/patterns.


View the Maine Coon Breeding Policy here

View the current Maine Coon Registration Policy here