David: Re Advanced Certificate (commercially endorsed) Vs Coastal Skipper (commercially endorsed); My understanding is that the Advanced certificate is considered equivalent to Coastal Skipper and thus a commercially endorsed advanced certificate allows you do anything you can with CS. There is no distinction in the codes between a ‘Powerboat’ and a ‘Motorboat’ from my recollection (and brief scan of the yellow book).
Which leads onto the point about the number of paying passengers that can be taken with these qualifications. It is limited to 12 because this is the distinction between a small commercial craft and a ‘larger one’ (not sure the correct definition). Above 12 persons and/or 24m the coding issue is a whole different ball game and I cannot imagine anything other than big ship qualifications being valid.
Crazyhorse: If you are coding your RIB then it looks like you can go to CAT 2 (full wheelhouse) from the new draft codes. Re the Inshore stuff it really depends whether you are prepared to be tied to a NDP or wish to operate within a certain distance of a ‘Safe Haven’. Either way fee paying passengers any distance offshore necessitate coding.
I wrote a long thread ages ago at Chartering your RIB
which addresses the various coding levels. I would tend to not look at it as inshore and offshore as the codes define actual distance and everyone's definition of inshore/offshore varies anyway. One of my boats is coded to Cat 4 which is 20m from a safe haven in favourable weather & daylight and a commercially endorsed Advanced certificate is fine for that. As per my point above the motorboat Vs RIB distinction I don’t believe is valid.
Janho: The ratio for the Advanced course is actually 6:1 with three per boat. The recommendation is also that a suitably qualified person is on the second boat during the night nav. Personally I always run with 3:1 as I feel it gives a far better deal to attendees else they spend a high percentage of time without running with an Instructor in the case of two boats. If running with one boat then a second boat at night as safety cover strikes me as common sense too.
PS: Yes it does have a sticker to show it is coded & it is surveyed fully at the outset then it varies between owners own certification & resurveys by a survey