A person, appointed or elected to manage the affairs of another, but the term is more usually applied to those officers of a corporation who are authorized to manage its affairs.In banking corporations these officers are commonly called directors, and the power to conduct the affairs of the company, is vested in a board of directors. In other private corporations, such as railroad companies, canal, coal companies, and the like, these officers are called managers. Being agents, when their authority is limited, they have no power to bind their principal beyond such authority. The persons appointed on the part of the House of Representatives to prosecute impeachments before the Senate, are called managers.
An assignment within an organization in which the employee primarily manages the organization, or a department, subdivision, function, or component of the organization; supervises and controls the work of other supervisory, professional, or managerial employees, or manages an essential function within the organization, or a department or subdivision of the organization; if another employee or other employees are directly supervised, has the authority to hire and fire or recommend those as well as other personnel actions (such as promotion and leave authorization) or, if no other employee is directly supervised, functions at a senior level within the organizational hierarchy or with respect to the function managed; and exercises discretion over the day-to-day operations of the activity or function for which the employee has authority. 8 U.S.C.