All new members have a 2 week probationary period. Basically during that time we are gauging to see how active and well you are fitting in with us. During that time you are required to use the Recruit clan ID (CLR). After the you have completed the 2 week probationary period you will be allowed to choose 2 unique clan identifier numbers (ie: CL00).
These are unique so you have to make sure that the numbers you choose, no one else has.
So...2 week probationary period = CLR
After probation is over = CL##
Thank you,
Grymlock
P.S. To see the numbers that have already been chosen click this link
https://lance.4umer.com/t46-clan-id-s