By Tommy Bowman Winston-Salem Journal Appalachian State’s wait for a move up to the NCAA’s highest level of football appears to be over. University officials will accept an invitation to join the Sun Belt Conference later this week, probably Wednesday, according to a source at ASU familiar with the negotiations. The source spoke on the condition of anonymity because neither the school nor the conference has made an announcement. Details of the move — such as the exact date that ASU will join the Sun Belt — are being worked out, but ASU could begin competition in the Sun Belt in 2014 in all 18 sports the conference offers. The move will take the Mountaineers to the Football Bowl Subdivision. They have competed in the Football Championship Subdivision (formerly I-AA) since 1981. FBS schools can offer as many as 22 more scholarships than FCS schools. Appalachian will leave the Southern Conference, where it has been a member since 1971. The Southern Conference has an exit fee of $600,000 for programs leaving in less than two years after giving notice.