paolov:
yes that is stated as such. however if you take the post in CONTEXT and not just verbatim , the context is SAFETY not certification that concerns PADI.
violation is on the issue of SAFETY not certification violation.
you may rebut on the wording and your interpretation but as most guys have stated, implied , suggested the first and foremost concern is the safety issue not certification procedures.
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In agreement with you, paolov, regarding the primacy of safety. BUT... there are two separate courses being discussed in this thread, which makes "context" a bit fuzzy and hard to pin down (and I can only go by what is written verbatim as I'm not given to guessing about people's implied meanings). The two questions seem to be:
1) Should an OW candidate be allowed to do open water training dives in a drysuit, and if so, under what circumstances?
and 2) can an AOW candidate do the course in a dry suit without any previous dry suit experience?
As to 1) it's clear that standards allow doing the OW checkout dive in a dry suit if an orientation session in the pool precedes it. What isn't clear is exactly what the LDS mentioned by the OP is proposing. If the OW candidate prefers a shore dive in a dry suit, then the LDS is correct in asking the student to pay for the additional training required, which, according to standards, is an orientation class. If the LDS is asking the student to buy a dry suit course (as the OP claims), then it is in violation, since that course is only open to certified divers. It is possible that the OP meant to say "class" and not "course," but unless he clarifies his posting, we can't know, and I won't guess.
As to 2) it's also clear that an AOW candidate can do the entire AOW course in a dry suit if s/he has been taught to use one. What is not clear is whether the OP received that training as an AOW student, either as an orientation class in the pool or as one of the three optional adventure dives. If the training was provided, there is no violation, either of standards or of safety concerns. But there isn't really any way to know unless the OP tells us (and again, I won't guess); only then would we be able to say whether the LDS followed or violated standards.