From the CBBF

UPDATE: Read further down as this has changed again.

Commencing January 1st 2012, the upper age limit for juniors at all IFBB championships and other continental, regional and national contests will be 23 years old, during the year of competition.

In addition, for the 2012 IFBB World Championships Qualifier event, no athletes who are under the age of 18 years shall be allowed to compete.
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