本帖最后由 nan1 于 2013-4-16 10:43 编辑 % M- c" A& g7 z& U0 t I- u+ j
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From Apr 8 2013, the certificates renewal policy of all compulsory trades in Ontario has changed. check link below. 5 s. x( e$ s- N3 u( O. I! bhttp://www.collegeoftrades.ca/