Aaaaaalllrighty then - but let's try to not mislead any would-be dinguses in there that might start to think that was a passing lane, mmmmkay? Read the posts again; we're not talking about crossing solid lines, we're talking about driving in the middle lane of a two-way road that has thick, diagonal, yellow lines painted ("Zebra" lines). I don't know what education a certified "driving instructor" requires, but I'm pretty sure it ain't a lot. IMHO I think a BIG problem we have in this country is immigrant driving schools teaching other immigrant's how to drive. It is NOT enough to just know & teach what the road markings and signs mean. Every continent and country has driving "etiquette" that most of us in here are all too familiar with, and these just can't be learned unless someone REALLY cares and is paying good attention (I'm writing this as the son of immigrant parents). Unfortunately, when Mohammad comes to Canada and his PH.D isn't recognized here, he has an easier time opening a driving school, rather than practicing medicine. And all of his driving habits, etiquette and understanding he has from his home country get taught in his mother tongue to other new-Canadians. As for crossing solid lines, the ONLY time it seems to be legal is on a two-way road with a single yellow line. Pretty much every other instance indicates that you cannot cross over (double yellow, single white, solid-side of a solid & dashed line, etc). You'll need to refer to the driver's handbook for this; they don't publish the info online, cuz they want you to buy the book. Do you really think the road markings will differ between the provinces? Got any examples of that? I really doubt it (seeing as how our standards match those of another country (USA), but I guess it's possible.