As would an IMCA/DCBC/HSE/ANSI/ACDE Certified Commercial Diver with a Mixed-Gas/Closed Bell Ticket. Go figure....
To be fair, not many people outside the industry know these organizations or the signifigance of a Mixed-Gas/Closed Bell Ticket. I have talked to working dive masters that didn't know what a saturation diver was. This thread was enlightening to me: http://www.scubaboard.com/forums/advanced-scuba-discussions/433006-what-do-you-call-gear.html