So one question I think about as this is discussed is "Why do we need certification?" expecially for the recreational diver, and who has jurisdiction of that certification. I know of no laws that will stop me from going diving if I want to.
The only certification I can think of that should really exist is for the professional diver, or instructor. I have this OWD card, all shiney and new. Now, any shop will fill my tank, and I can do what I want. In fact I can fill a couple of tanks and take my new uncertified friend to try it (not that I ever would) but there is nothing anyone can do about it. Certification is really so the Dive Ops dont have to a skills session with each new customer before they head out on the boat. Certification for the working diver is simply to tell your boss, "I can do [this]".
We want to impose certification on other divers in our party, so that we know they have a minimum skill requirement. I believe this to be a dangerous belief. There are already people I know I would not dive with. When we go on a trip and get on a boat with 4 other people, are you diving with them? or are you just in the same ocean? To me, I am with my daughter, she with me, and then there are also people in the ocean. That is not to say we cant dive the same site or that I wont offer my octo in an emergency, just that I am only really counting on my buddy. We know our skills, limits, and realize we know very little.
Education, not certification, is about informing the new diver about how to dive safely. Certification is just a card that gets lost after 6 months. (god I hope know one ever asks where my pilots license is!) The LDS's have agreed on a standard and the "certification" for the recreational diver is really about getting a full tank of air. What the OWD course needs to do is present the minimum amount of information about what is needed to dive, where to get more, and a desire to learn enough to be safe. There is no way to stop me from diving if I want to! If the courses become too expensive, the rest of the sport will follow suit. Not as much equipment is needed, therefore becomes more expensive. Dive shops close, manufacturers retool for other needs etc.
To teach someone anything is to install in them a desire to learn. If, as instructors, your goal is to demonstrate and perform a set skills, you have failed. You must instill the desire to achive a minimum skill and knowledge level for the desired goals. One problem with the sport is the widely varing goals from the vacation 30' max diver to the underwater welder. Thus the tree of specialties within the PADI chart I saw. The first OWD course is basically a "This is how you breath underwater" course. After that I can take more training if my goals change. Every person in my course, 5 of us, was headed to mexico. Two of the students I would never partner with.
This may sound hard, but if we are looking to increase the standards, continue to teach to the current level. If people start getting injured or worse, the industry or governments (see Quebec) will step in and self regulate. Ex. My orig pilots lic. was a joke compared with todays standards. Basically if I could take off and land, I was good to go. Heck my father started flying when he didnt need one! Then people started dying, and the standards improved. Certification, in my view, is a balance of safety vs public outcry. If some of the diving accidents got more news coverage, I am sure we would see an increase in standards.
Instead of concentrating on certification standards I would hazard that if an education campaign was started by the industry, ie manufacturers and LDS, the certification agencies would follow suit. BUT, I doubt very much that the CA's can push the manufacturers very far. Target the people with the money and that control the money. The industry will always work towards the min CA requirements, and if those are too high, they will start a new one (discreetly or indiscreetly)