Limits would not be the correct word. PADI instructors can add to the information given a student, but the student cannot have their certification with held by not being able to demonstrate mastery of any added skills. In example, I include basic rescue skills in my confined water exercises. However, if the student does not show mastery on the rescue portion, which has not happened, but demonstrates mastery with the required skills, I must certify the student. NAUI allows instructors, to my understanding, to with hold certs if the student does not demonstrate mastery in the skills above standards. Since I am certified to teach and certify Rescue divers, and as long as I follow the standards for that course while instructing the students in Open Water, I have a defensible postion if challenged. I cannot however, teach decompression diving as I am not qualified to teach that.
Actually, PADI does not allow you to teach outside their "instructional system" or "standards" while teaching a PADI course. Furthermore, if you advertise it as a PADI Course, you must adhere to their standards and issue a PADI certification card.
According to the PADI Instructor Manual, "The responsibility for course or program content and sequencing falls on PADI". Under PADI's standards, they do not allow their instructors to become an "instructional designer" and PADI's system is the "... bonafide instructional system [that] will tie together and clearly establish the material's presentation, repetition and multiple proof of student diver mastery."
In the case of Confined Water Sessions 1 through 5, the PADI Instructor must present the skills on the cue cards in order. That means you cannot introduce skills on Cue Card 2 until all skills have been mastered on Cue Card 1 (you do have some flexibility as to sequencing inside the confined water session). The definition of mastery, as outlined in the Instructor Manual, "is performing the skill so it meets the stated performance requirements in a reasonably comfortable, fluid, repeateable manner as would be expected of an Open Water Diver." Sequencing and what-not is further outlined in the PADI Learning Pyramid.
While no single person or agency can prevent you from teaching additional skills or skills out of sequence, PADI will tell you that if you do so, you are not teaching a PADI course. The ramifications for this are outlined in the Risk Management and Quality Management sections of the Instructor Manual. To Summarize: When you teach outside of the prescribed curriculum by PADI, you are outside of standards. I only bring this to your attention, because you say that "Since I am certified to teach and certify Rescue divers, and as long as I follow the standards for that course while instructing the students in Open Water, I have a defensible postion if challenged." If you are ever (god forbid) in a place where you need to defend your position, PADI will testify that while you may be certified to teach a PADI Rescue Course, your deviation from PADI Standards clearly shows you were not teaching a PADI course.
But, I ask you not to believe me: Call your course director and/or training department at PADI. I assure you that you will receive a similar answer (PADI's may be a little less blunt).
Thus, your teaching rescue skills during the OW Course (which has been frowned upon by PADI in their training bulletins and when calling their training department) is outside of the scope of the PADI Instructional system for Open Water Divers. PADI does not support doing this because, "failure to follow a valid, established instructional system makes it harder to defend a dive professional's teaching practices. The professional's credientials as a qualified "instructional designer" may be challenged" In fact, my personal experience when speaking to PADI's Training Department about introducing rescue skills in OW Class, was that PADI felt it was too early to introduce complex skills and this would overload a new diver. They further pointed to the fact that they do have some rescue skills in their curriculum (ie. cramp release and tired diver tow). They further suggested that their training program builds and that more skills are added in Advanced and Rescue diver courses to complement this perspective. Shortly after my conversation with them, I noticed in one of the training bulletins that instructors could add an optional rescue skill in the Advanced class in an attempt to introduce the next level of diving to the student.
Thus, in your example, your providing the rescue skills MAY be a great value added to your consumer. PADI Instructors CANNOT add that to their courses. When you do that, you are doing it outside the framework of your instructor affiliation. PADI will be the first one to tell you that when you teach outside of the scope of their standards, you are not teaching a PADI course. With NAUI, you are very correct. They teach rescue at every core step. Furthermore, when NAUI Students take the Advanced Rescue Class, they need to take a review every three years to keep their certification from expiring. It is a different philosophy - not a better one or worse one.
I am a PADI Master Instructor, an SDI/TDI Instructor Trainer and a NAUI Instructor Trainer. I agree that the instructor makes a big difference, but I disagree that it is the sole differentiator. Furthermore, while I teach mostly SDI at the time, I have issued hundreds of certs from the other two agencies. I can personally attest that each agency has its strengths and weaknesses. I truly believe that a diver looking to pursue his/her personal dive path will need to be certified at some time, by all three of these agencies (and more). Why should any consumer limit themselves. Furthermore, why should an instructor limit themselves in providing the best possible course to their student.
Great instructors make great divers. Great agencies support great instructors.
I hope this helps!
jcf
PS - This PostScript was added after my original post. In my posting, I note
my conversation with PADI's training department. After reading my post here, I gave it a two sentence summary. Readers should note, to be fair to PADI, they were not quick in their reply. In fact, I had a great conversation (as typical) with their training staff and that particular snippet was just a small portion of their reply. The conversation was nearly 30 minutes.