I'm still waiting from the legislator who wrote it for confirmation on it's effective date, but Minnesota did pass the bill to classify the Slingshot as a Autocycle. It will still be licensed and registered as a motorcycle, but will require only a valid drivers license (no motorcycle endorsement needed) AND *important here, Seat belts Must be worn. Helmet law as it is for motorcycles applies to the Slingshot as well. No helmet if 18 or older.
*** Update ***
Law takes effect Aug 1 2016
Mark