22 U.S. Code § 3902. Definitions
As used in this chapter, the term—
“chief of mission” means the principal officer in charge of a diplomatic mission of the United States or of a United States office abroad which is designated by the Secretary of State as diplomatic in nature, including any individual assigned under section 3982(c) of this title to be temporarily in charge of such a mission or office;
“employee” (except as provided in section 4102(8) of this title) means, when used with respect to an agency or to the Government generally, an officer or employee (including a member of the Service) or a member of the Armed Forces of the United States, the commissioned corps of the Public Health Service, or the commissioned corps of the National Oceanic and Atmospheric Administration;
“United States”, when used in a geographic sense, means the several States and the District of Columbia.
References in Text
 See References in Text note below.