Maurader
Think you may be wrong there in your statement.
CAO 82 applies to Air Operators’ Certificates authorising aerial work operations, charter operations and regular public transport operations and sets out conditions to which such certificates are subject for the purposes of paragraph 28BA (1) (b) of the Act.
AND then
2.4 For the purposes of subparagraph 2.3 (b), the amounts of fuel are:
(a) the minimum amount of fuel that will, whatever the weather conditions, enable the aeroplane to fly, with all its engines operating, to the remote island and then from the remote island to the aerodrome that is, for that flight, the alternate aerodrome for the aircraft, together with any reserve fuel requirements for the aircraft;
and etc etc
Your 3A is just a further restriction to that above which applies to pax carrying CHT operations, that being the alternate cant be another remote island and cant be a single engine aircraft.
So it appears that you still need a alternate even for AWK travel to a remote island.
edit (Zanzibar, you beat me by mere minutes)