This Standard applies to occupational diver trainees, training organizations, instructors, and facilities. It describes the requirements for trainee assessment, instructor qualifications, and minimum equipment for each level of training. This Standard also provides guidance on the auditing of diver training facilities and programs. Its purpose is to ensure that the competency levels specified in CSA Z275.4 can be achieved within programs offered by accredited training facilities and that divers who successfully complete those programs can be considered competent at the level trained, in accordance with CSA Z275.4.