That's correct, and where it's in place--and it's not in place for every operator, but we will certainly endeavour to see that it does become in place--it's not just an authority that you have to stop the work, it's actually a responsibility you have. If you see something that you think is unsafe, even though it's beyond your technical realm, if you believe it's unsafe, you have a responsibility to stop it.
When you go offshore for the first time on a particular installation, you'll be given a fairly intense orientation. I did that twice on the drill ship I'm referring to, the Stena Carron, and both times, the main emphasis in the induction was all about the stop-work authority and what that actually meant and what your role as a worker was in making sure you did that if you had to.