Thought this could be interesting. Was reading the oneworld rule sheet and found this (haven't seen it mentioned before on FT): ...
Try searching for the forum for "Canada" & "exception" ...
The exception for Canada was
re-introduced some time 2007 (IIRC), EU counties were added as also being valid for this exception with an xONEx rules revision published in November last year:
http://www.flyertalk.com/forum/onewo...-02nov2008.htm