Well, in general I think the diving community does a decent, but not spectacular job of regulating itself. There is one aspect that has always troubled me and that is of the instructor "passing" his/her own students.
I'm going to fall back on my experience with flying. For a person to obtain a private pilot's licence they need to go to a reputable school, learn from a competent instructor, and pass written and practical exams. Not so different from diving. The big difference is that the exams are given and scored by the FAA, not the instructor or school that teaches the pilot.
I don't think this is a horrible model. If an instructor *knows* that the students abilities will be judged by someone else, I think they'd be less likely to overlook the students' deficiencies before signing off on the final tests.
I don't think that the full FAA model is necessary, but to hand off the students to another instructor for the final evaluation means that the skills portion will be evaluated on a stricter pass/fail than the current plan in which a student that may have problems on a skill won't be cut slack from an understanding instructor and that the instructor will have to be absolutely sure the student can pass before turning them over thus ensuring a higher degree of skill from the very beginning. Each agency could supply instructors instead of a national, government controlled overseeing body.
This may or may not be on topic. If not, I apologize.
Can open, worms everywhere.........
Rachel