The University of Maine System is eliminating out-of-pocket tuition and fees at four of its campuses next fall for any first-year Maine student who qualifies for a need-based federal Pell grant. The new financial aid program will be available to students at University of Maine at Presque Isle, Fort Kent, Augusta, and Machias, officials said Wednesday. “These campus programs represent exactly the kind of focus we need on innovation, debt reduction, and workforce to achieve two of our highest priorities: student success and economic development,” said Jim Erwin, chairman of the board of trustees. Students still have to pay for room and board, books and other costs, but they qualify for work-study programs and other aid to help with those expenses, officials said. Tuition and fees at the four campuses is about $7,500 a year.