Etienne
I am albertian, therefore Quebec is irrelevant,
But when I grew up it was PQ KTHX
source- Canada Post
Quebec — Que. and P.Q. (French version, for Province du Québec); later, PQ evolved from P.Q. as the first two-letter non-punctuated abbreviation. Later still, QU evolved as the second two-letter non-punctuated abbreviation, making Quebec's abbreviation consistent with other provinces insofar as using letters solely from the name of the province, but not the word "province", In 1991, the code for Quebec was changed from PQ to QC.
