So this happened today on Guelph line just south of Derry. It's a 50 zone and there are always cops doing radar. I was going about 60. She was riding my *** for about 2 klm then decided to pass on a double yellow line. I caught up to her about 5 minutes later when she was waiting to turn on Dundas.
https://youtu.be/yzEn_aKRIHc
Passing on a double yellow line in Ontario is legal, unless there is a sign stating otherwise.
[video=youtube;yzEn_aKRIHc]https://www.youtube.com/watch?v=yzEn_aKRIHc&feature=youtu.be[/video]