10 U.S.C. § 10212 — Gratuitous services of officers: authority to accept

(a) Despite section 1342 of title 31, the Secretary of Defense may accept the gratuitous services of an officer^* of a reserve component (other than an officer of the Army National Guard of the United States^* or the Air National Guard of the United States^*) in consultation upon matters about the armed forces^*.

(b) Despite section 1342 of title 31, the Secretary of a military department may accept the gratuitous services of an officer of a reserve component under the Secretary’s jurisdiction (other than an officer of the Army National Guard^* of the United States or the Air National Guard^* of the United States)— (1) in the furtherance of the enrollment, organization, and training of that officer’s reserve component or the Reserve Officers’ Training Corps; or (2) in consultation upon matters about the armed forces.

This section does not define other specialized terms it uses.