The Illinois Department of Natural Resources wants to remind boat owners that watercraft registrations expire at the end of this month. If the sticker on your watercraft reads "13" then it expires at midnight June 30th and needs to be renewed. The Department of Natural Resources did not send out watercraft renewal notices this year. It is now the boat owner’s responsibility to make sure that watercraft registration is current. Boat owners can renew their registrations using a touch-tone phone and calling 1-866-867-3542 or using a computer and going to the Department of Natural Resources website.