THe above posters raise solid points about the rules, and personal liability. I read your OP slightly differently and saw the job as basically a gofor type job. As long as the Instructor and the qualified AIs meet the requirements and you're only an extra body helping out with lugging equipment, keeping notes, and such, it should be OK.
Check with the school as to exactly what your job will entail and what are your limits. Also ask the school which certifying agency they're working with, what are that agency's rules, and make sure that the course and you stay within those guidelines. Probably there'll be a line keeping you from any actual interaction with students. For your safety (physical and legal) stay on the right side of it, and within the limits of your job description.
The first part of your training aparently will entail learning about the instruction process, so you're already ahead.