In reply to RKernan:
> I work at a wall which is looking into taking part in the NICAS scheme. There's a bit of confusion about site specific requirements - what's the consensus on teaching tying in/belaying - to assess site-specific instructors to teach belaying/tying in do you need an MIA yourself or is a suitably qualified SPA up to the task?
I think you mean suitably 'experienced' SPA as there isn't really such as thing as a 'suitably qualified SPA' technical adviser.
I do know that AALS are developing very strong views on the 'dilution' of responsibility that they see happening; not just with non-MIA Technical Advisers but with Technical Advisers 'signing-off' people to 'sign-off' others.
The bottom line, however, would seem to be that in the event of an accident you can demonstrate that you have taken all reasonable measures to assure the competence of those working at your wall. Current good practice would seem to be that a suitable experienced MIA+ who acts as technical adviser and staff trainer/assessor is a suitable reasonable measure. If you don't want to go that route that is up to you.