Originally Posted by AcuraFanatic
NH requires front plates, but the state 20 miles away from me (Massachusetts) does not.

Wrong.
Massachusetts requires a front plate IF you have the red-and-blue-on-white plates ("Spirit of America")..IOW, if you were issued two plates, you must use both of them. If you have the green-on-white plates, you only got one, and that goes in the rear.