There are even laws on the books specifying the left lane as the "passing lane". There seems to be a recent trend in making these more strict, so I wonder what

There are even laws on the books specifying the left lane as the "passing lane". There seems to be a recent trend in making these more strict, so I wonder what effect they're having. This guy seems to have an up-to-date catalogue (green indicates more strict): http://www.mit.edu/~jfc/right.html http://www.mit.edu/~jfc/right.html