Hmm...well, the FCL2 references I gave were under the general heading of Flying Training Organisations (FTOs) for pilot licences and ratings. I assume your airline's ground school is an approved FTO. If it is, I'd be very surprised if you can't find a copy of FCL2 there as it sets out the rules for FTOs!
If it's not, then X-under is right - anyone can do it, but not under JAR rules, only if your national authority approves.