Missouri law says I don't need ANY mirrors, as long as I can see out the back or the side of my vehicle. So, as long as I can lean out the window, and see behind me, I'll be fine! Must have been written in 1900.
The only other place I'm likely to drive is Kansas, which requires only one mirror. Hmmm, maybe I *should* wipe that driver's mirror.
But I stuck with the federal reg's when I wiped my passenger mirror, which require one inside mirror and one outside mirror--driver's side.
http://edocket.access.gpo.gov/cfr_20...cfr571.111.htm
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