NBN EN 14153-3:2003

This European Standard specifies the competencies that a scuba diver has to have achieved in order for a service provider to award the scuba diver certification indicating that he has met or exceeded scuba diver level 3 - "Dive leader" and specifies assessment of these competencies.
It also specifies conditions under which training has to be provided, in addition to the general requirements for recreational diving service provision specified in prEN 14467.
This European Standard applies only to contractual training and certification in recreational scuba diving.