"Giwi" wrote in message m...
I've heard that some pilots have the authority to descend to CAT II
minimums (RA100) on CAT I intstrument approaches. If this is true,
then how is the CAT I approach altered?

Not that I am aware of. What I am aware of is there is a procedure to
for pilots and the aircraft to get approved for CAT II approaches with
exemptions for some of the requirements (radar alt etc...). Requires
a check ride and is good only for the pilot/aircraft it's demonstrated in.