employee

For purposes of this part, and except as the Department may otherwise determine in a particular case, the term employee includes the Secretary and former Secretaries of State, and all employees and former employees of the Department of State or other federal agencies who are or were appointed by, or subject to the supervision, jurisdiction, or control of the Secretary of State or his Chiefs of Mission, whether residing or working in the United States or abroad, including United States nationals, foreign nationals, and contractors.

Source

22 CFR § 172.1

Scoping language

This part sets forth the procedures to be followed with respect to:
(1) Service of summonses and complaints or other requests or demands directed to the Department of State (Department) or to any Department employee or former employee in connection with federal or state litigation arising out of or involving the performance of official activities of the Department; and
(2) The oral or written disclosure, in response to subpoenas, orders, or other requests or demands of federal or state judicial or quasi-judicial authority (collectively, “demands”), whether civil or criminal in nature, or in response to requests for depositions, affidavits, admissions, responses to interrogatories, document production, or other litigation-related matters, pursuant to the Federal Rules of Civil Procedure, the Federal Rules of Criminal Procedure, or applicable state rules (collectively, “requests”), of any material contained in the files of the Department, any information relating to material contained in the files of the Department, or any information acquired while the subject of the demand or request is or was an employee of the Department as part of the performance of that person's duties or by virtue of that person's official status.