(a) National park includes a national monument or other area under the administrative jurisdiction of the National Park Service of the Department of the Interior.

(b) Concessioner includes any individual, partnership, corporation, or other business entity engaged in operating facilities within or without a national park for the accommodation of visitors to the park under a contract with or permit from the Secretary or the Director.

(c) Employee includes any individual employed by a concessioner in connection with operations covered by a contract with or permit from the Secretary or the Director.

(d) Executive or department head includes any employee whose primary duty is the management of the business of the concessioner, or a customarily recognized department thereof, and who customarily and regularly directs the work of other employees with authority to employ and discharge other employees, or whose suggestions and recommendations as to the employment, discharge, advancement or promotion of such employees will be given particular weight by the concessioner, and who customarily and regularly exercises discretionary powers.

(e) State means any State, Territory, possession, or the District of Columbia.