Buy-outs consist primarily of using grant money to obtain additional time in order to comply with research responsibilities reflected in the budget of grants. Buy-outs can be of service or teaching duties and must be approved by the respective department head. Non-tenured faculty generally cannot buy out service time because service is one of the criteria for promotion. However, some reduction in field service may be possible in a case-by-case basis with a buy-out from grant funds. Once approved by the Dean and the Department Chair the department must find a suitable replacement.