I know that the study year is only 8 months and I am not 100% sure how they make the distinction between an 8 month program and a 1 year program that is really only 8 months but if you look at http://www.cic.gc.ca/english/resources/manuals/op/op12-eng.pdf you will see that they mention an 8 month program always as a certificate program and more than an 8 month program as degree programs.
It may have something to do with how the program is advertised, as a 1 year program instead of an 8 month program but other peoples experience seems to be that if you enrol in a 2 year program, you get the credit for a 2 year program and get a post grad work permit for 3 years.