OORRR.... we could go one step further and come up with all the states that haven't defined motorized bicycles, and then send each of their legislators a letter showing how awesome MBs are for everyone... and there only needs to be an age (16) and speed limit (25 MPH??).
If anybody has some time to spare... finding the threads where we tried to accomplish this task and adding to them would definitely be helpful to many on this site and would-be MBers as well.