In the United States, many colleges and universities have marshals. In some cases, there is a single "faculty marshal," appointed to the post on a more or less permanent basis. In other cases, there are one or several faculty marshals, and often one or several student marshals appointed for a single occasion. In all cases, the post is one of honor given to a senior faculty member or outstanding student, and the functions are generally limited to leading processions or parts of processions during commencement exercises, academic convocations, encaenia and similar events. These marshals often carry maces, staffs or wands of office.