21. The Chamber certifies trainers if he or she has 3 years of experience in the given subject matter and meets one of the following conditions:(1) he or she has followed at least 24 hours of training in knowledge transmission;
(2) he or she has 240 hours of experience as trainer;
(3) he or she has followed at least 12 hours of training in knowledge transmission and has 100 hours of experience as trainer.