going to scare everyone away with that degree of specificity.
There are many codes and subcodes, all very similar, and people signed in here have mentioned their very few differences.
I'm 99.99% sure that drain sizing is exactly the same in all codes.
I know of one difference in Ontario (maybe in all codes in Canada). The washing machine can drain into a 1.5" pipe. This is a relic from an older version of Code, and it never got increased to 2" as it did in the US. AFAIK.
One difference among codes is how long (maximum) your drain can run without venting. IPC, UPC, based codes vary on this subject, and these differences are known to many.
We had a questioner here last week who asked about the Ontario ESA inspection requirements. Similar question, and also too specific, as if Ontario would be all that different from all the other codes. The codes, adopted locally, are based on standards that are shared and discussed. They are designed to be close or the same to each other. Local regulatory agencies cannot NOT have a code, and cannot let their code be defined by some other group, so they adopt "a code" as their own, which is either 100% or 99% the same as ...