Not to call
@iman out, I think he's actually using the term correctly here, but I think some of the debate or confusion in past posts is that people don't realize "four lane highway" typically means 2 lanes each direction.
When you have two lanes in a direction, you are supposed to keep right when not passing, in this state and most others. If you have four lanes in a single direction, then laws seem to vary more, but I do believe most still have a reservation on the far left lane for either passing or other purposes (e.g. carpool).