BEND, OR -- The U-S Forest Service has opened a 45 day comment period on special recreation permit fees in three wilderness areas. Jean Nelson-Dean at the Deschutes Forest says the permits are required for day and overnight use in the Mt Jefferson, Mount Washington and 3-Sisters Wilderness Areas. Day use permits  Nelson-Dean says no permit fees are required for youth under age 12 although limited entry reservations are needed regardless of age. She says day use fees are required at 19 of 79 trailheads. Overnight permit fees are required at 79 trailheads. The limited entry permit system to the wilderness areas is expected to take effect next summer. The comment period ends in late November.