For the purposes of this Act—
(1)
the term Postal Service means the United States Postal Service;
(2)
the term postal retail facility means a post office, post office branch, post office classified station, or other facility which is operated by the Postal Service, and the primary function of which is to provide retail postal services, but does not include a contractor-operated facility offering postal services;
(3)
the term district office means the central office of an administrative field unit with responsibility for postal operations in a designated geographic area (as defined under regulations, directives, or other guidance of the Postal Service, as in effect on January 1, 2013); and
(4)
the term area office means the central office of an administrative field unit with responsibility for postal operations in a designated geographic area which is comprised of designated geographic areas as referred to in paragraph (3).