Doesn't apply to non federal waters, that is a state law issue. I highly doubt that MN would ever enact a law that requires it - boating restrictions rarely get very far here.
This is the important part
The new law will be enforced by the Coast Guard in federal navigable waterways. Alexandria, Virginia-based BoatUS, the nation’s largest boat-owner organization, expects most states that don’t already have such laws on the books will amend their regulations to match federal law over the coming years.