Interesting discussions on the depth limits. When I got certified OW in Hawaii in 1989, they told us of the 130 ft limit provided we gradually get comfortable and experienced. However, there was nothing of this nonsense of shops refusing taking you on a charter to 80 ft depth! All it is doing is to force you to spend more money and get higher certification level, never mind your real experience. When you go on a charter you sign a release and this should get the lawyers off the operators' backs. Operators should not be allowed to limit who they take as long as you have a valid certification and sign the release. OW should be down to 130 ft. As stated before, if you have AOW but no experience, you have no business on a 80 ft dive - but that is your business and that is why you have to sign the release. Just please remove the commercial profiteering from scuba diving!