(a) An employee shall not, with or without compensation, teach, lecture, or write for the purpose of the preparation of a person or class of persons for an examination of the Office of Personnel Management (OPM) or other agency to which examining authority has been delegated, or Board of Examiners for the Foreign Service that depends on information obtained as a result of the employee's Government employment.

(b) This section does not preclude the preparation described in paragraph (a) of this section if:

(1) The information upon which the preparation is based has been made available to the general public or will be made available on request; or

(2) Such preparation is authorized in writing by the Director of OPM, or his or her designee, or by the head of an agency to which examining authority had been delegated, or his or her designee, or by the Director General of the Foreign Service, or his or her designee, as applicable.