Why is it illegal to pass someone on the right on the highway in the US? In Canada if there’s a three lane highway which, in my case, isn’t very prominent, there’s really no law that enforces it, it’s more of a respect thing here on two lane highways both ways if someone is going slow in the left lane to go into the right but I’m just curious as to why it’s actually enforced in the US?
It’s to make the standard practice passing on the left, so people aren’t surprised by someone passing on the right. Since drivers sit on the left, another vehicle approaching on that side is easier to see.