This is not at all clear, DrHowser, since AA has a separate agreement with CP that predates the oneworld agreement. That is why reciprocal mileage accumulation [and qualifying at that] will continue after June 1st and I don't believe it is restricted just to codeshares. Obviously, we need clarification but I have been unable to find it on AA or CP web sites, or mailings from either carrier. Changes on AA website re: upgrades only refers to newly-introduced fare class restrictions versus "all published fares" that applied to PLAT and EXECPLAT AA members [and CP GOLD AND PLATEXEC members] last year. Will post anything on this matter I discover in the coming days. Now back to work...