This subpart applies to any of the following serving in a position in the Federal Government:

(a) A person serving in the competitive service under a career or career-conditional appointment.

(b) A person serving under a career appointment in the Senior Executive Service (SES).

(c) A person serving in the excepted service under an appointment without a specific time limitation.

(d) A person appointed or assigned under authority of the Foreign Service Act of 1946, as amended (22 U.S.C. 801 et seq.).