This past week-end, I was reading an old Rand McNally road atlas from 1978. There was a table in the back listing certain regulations for each of the 50 states. In the "Speed Limit" column, most states listed 55 miles per hour, and there was a footnote at the bottom referencing the Federal Energy Conservation Act. At one time, apparently, the Federal government mandated (provided incentives?) that speed limits be set at 55 MPH in order to increase our miles driven per gallon. But sometime in the mid-1990s that went away. Here in Michigan, we raised our speed limits to 65 MPH and then to 70 MPH. Given our discussions on this board on the "peak oil debate," how likely is it that states might return to a 55 MPH standard? On the Federal level, the current administration doesn't seem all that interested in promoting policies that help us conserve energy. Does lowering the speed limit actually help us conserve energy by giving us more miles driven per gallon?