yes you have to be a member of a cat club reconized by the gccf for 1 year before you can apply for your prefix, you then fill out the form downloaded from the gccf site, and send your cheque to your cat club they sign it and forward it onto the gccf, also some clubs wont sign the forms unless you have a mentor who is also a member of the club, hope this helps, iv now just applied for my own prefix, xx