As far as I know, the USPA hasn't really gotton involved with training of wingsuits. Birdman was the first to come up with a formal program. Training usually is a one day thing, and wouldn't really require you to monitor the progress of a student as they go from student to "trained" in a matter of 45 minutes plus a jump.
There was a time early on when there was no formal BMI training (training for the trainers) and the quality of the training received from the BMI's during that era greatly varies. The newer ones (i am not exactly sure when they started the formal BMI training) have a solid baseline to teach from.
We take up students with 200 jumps in the last 18 months or 500 total. I personally do not take anyone under 500 that has an eliptical canopy (i.e. stilleto). If you have over 500 jumps i'll let you make the call, but it is highly advised against.
Also no Pull out containers, only BOC.