5 C.F.R. § 735.202 Safeguarding the examination process.
Title 5 - Administrative Personnel
(a) An employee shall not, either for or without compensation, engage in teaching, lecturing, or writing for the purpose of the preparation of a person or class of persons for an examination of the Office of Personnel Management 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 the Office of Personnel Management or his or her designee, or by the Director General of the Foreign Service of his or her designee, as applicable.
Title 5: Administrative Personnel
PART 735—EMPLOYEE RESPONSIBILITIES AND CONDUCT
Subpart B—Standards of Conduct
§ 735.202 Safeguarding the examination process.