Prohibit motorboats and motorized watercraft on Class 2 waters

SB 481 prohibits motorboats and personal watercraft on designated Class II waters in Montana. It directly affects recreational users who operate motorized watercraft on these specific waterways, which are likely smaller or sensitive streams or rivers under state classification. The key provision amends Montana law to explicitly ban such motorized use on Class II waters, replacing previous language that only implied restrictions. The bill also requires the commission to adopt rules for managing recreational use on Class I and II waters, including procedures for limiting or restricting activities.