ALL states need this.
Here in Arizona it's not even illegal for tractor trailers to drive in the left lane, which is just ridiculous!
There are many fatal accidents that occur out here because of trucks in the left lane.
NO ONE should drive in the left lane unless passing, ESPECIALLY vehicles that can't come close to performing (acceleration/brakes) like the cars around them.
I can't believe how many people can't remember the basic "Slower traffic keep right" and they just sit there. It's easily one of my biggest pet peeves and has been for many years.
I've always wanted to get a "Slower traffic keep right" headliner on my car, but backwards like an Ambulance so people could read it in their rear-view mirror when I was behind them trying to pass.