Not that I'd know but the JAR 29 reference I have seems to imply that >20000lbs and with 10 or more passenger seats you must be Cat A.
It does allow for less than 20000lbs and less than 10 seats being Cat B with some variations.
All in Para 29.1 Appliciability.
My copy may not even be up to date but its all I have to hand.
Last edited by VeeAny; 8th December 2008 at 21:00.
Reason: Yes I got Kgs and lbs mixed up !