(2) When within a foreign country, comply with the regulations relating to the flight and maneuver of aircraft there in force;
So where does it say that i have to factor landing distance ?
AFAIK, you can consult the Jeppesen ATC and Emergency sections, the differences listed there must be complied with, however apart from that, FAA aircraft are certified to part 25 which differs from the JAA certification process. This can be easily seen in the MEL's, we have a FAA MEL and a JAR MEL. Applying the logic that you guys are proclaiming, we would have to comply with a JAR MEL every time we fly into Europe, and that isnt the case!
Mutt