Understanding Registration Codes
PER
02
SoM
BREED CODE
is always first;
used always in capital letters
COLOUR CODE
is always between the breed and pattern code;
it is always a number of 2 digits

(in case of white cats the eye colour in small letter follows the coat colour)

PATTERN CODE
is always last;
used always in 3 capital letters (with exception of So, Zi and Go);