If you trailer a boat or water-related equipment like docks and lifts in Minnesota, you must take AIS training and get a trailer decal.
Online training will be available here on January 5, 2015.
Paper home-study training packets will also be available.
Trailer decals are required on trailers starting July 1, 2015.
Rest the rest here:
http://www.trailers.mndnr.gov/