Christi:
It never ceases to amaze me how many "professionals" don't know the basic standards.
Your profile claims that you are a DM...depth limits ARE covered in the DM class.
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This evening is the first time since Friday afternoon that I checked this forum and I want to reply to comments from Christi and others.
However, before I start I will state that I am not an instructor, but a DM
I am fully aware of the defined depths for OW and AOW dives. However, I do not feel that a responsible instructor should take a class of OW students down to a depth of 60 during the initial 4 OW checkout dives. Too many things can go wrong with an OW class, including tendencies to panic and inability to control buoyancy. There are fewer things that can happen if an individual ascends uncontrollably from a depth of 25-35 than 60 (not saying nothing can go wrong at 30).
PADI defines a dive as a minimum of 20 minutes at a minimum depth of 20 feet. Since the OW course is a certification to 60, an OW dive can be a 20 minute dive between 20-60 deep. However, that does not mean an instructor must take the class to 60. In fact, I do not know of an instructor who will take their OW class to 55. As I stated in my original message, most instructors I have seen will settle at a depth of approximately 25 to complete the dives targeted skills, followed by a tour. Depending on the dive site, the tour may be to a depth of 40-45 feet but not into the 50 range.
In somewhat of a similar circumstance, my son will begin drivers education this summer. I do not expect the driving instructor will take him out on a freeway at 60 mph during the first few times behind the wheel even though 60mph is the legal speed limit. The instructor will have him drive in a safer location until he feels my son has become accustomed to the feel of driving a car. It is the same way with diving; an instructor should not push the limits until the students have become accustomed to diving and this is done through experience at more moderate depths.
Now of course there may be exceptions to pushing a to 60 on the 3rd or 4th dive, such as private lessons where the instructor can give his/her attention to that one student.
I hope this clarifies my position on this matter.
Jim