Note that this internet certification display was created in 2010, the data between 2004-2009 comes from older archives. Older data can be incomplete. Students registered with forename only will have to get back to F.biz for final validation.
Also note that older courses are much different than the ones being offered five years later. The way to teach advanced freediving has evolved much in the last decade. A certification given (for instance 2010 has more content and quality than the ones given 2005).
A new quite demanding theory test was introduced 2009.