Cap'n Chris said:
Er, no. Since caving NGB awards (unlike climbing, for example) are subject to periodic revalidation* I wouldn't think it's necessary for any visit at all, providing the NGB award and online registration was sufficiently adequate to prove that you're up to speed on your subject of expertise.
Last reval I did checked whether I could go up and down a rope, bring another up and down said rope, then display some brute force when said person couldn't go up (or down). Not sure how that would robustly test my procedures as a business? Which of course I know isn't exactly what you said.
Put another way. Perhaps the time has come for NGB awards to actually be recognised and trusted (rather than pooh-poohed) as bona fides in their own right that they serve to show the public punter that someone has been taught and subsequently tested as to whether they know their craft. Isn't that what an NGB award is for after all?
Maybe they should; maybe it's all a bit too confusing and time consuming for a customer to check every detail before they embark on a trip with you. That's a lot of websites a school or group will have to check before they visit a centre for a multi activity holiday. Viewing AALA/AALS as a kind of ABTA seal of approval covers it in my mind.
Thinking on what I've just written, two things spring to mind:
Cost most definitely is an issue and a good deal of talent is wasted. I don't know Chris but his enthusiasm is obvious.
How have I got to defending AALS?! :-D