5 C.F.R. §2635.501
Questions regarding impartiality necessarily arise when an employee's official duties impact upon the employee's own financial interests or those of certain other persons, such as the employee's spouse or minor child. An employee is prohibited by criminal statute, 18 U.S.C. 208(a) , from participating personally and substantially in an official capacity in any particular matter in which, to his knowledge, he, his spouse, general partner or minor child has a financial interest, if the particular matter will have a direct and predictable effect on that interest. The statutory prohibition also extends to an employee's participation in a particular matter in which, to his knowledge, an organization in which the employee is serving as officer, director, trustee, general partner or employee, or with whom he is negotiating or has an arrangement concerning prospective employment has a financial interest. Where the employee's participation in a particular matter would affect any one of these financial interests, the standards set forth in subparts D or F of this part apply and only a statutory waiver or exemption, as described in §§ 2635.402(d) and 2635.605(a) , will enable the employee to participate in that matter. The authorization procedures in § 2635.502(d) may not be used to authorize an employee's participation in any such matter. Where the employee complies with all terms of the waiver, the granting of a statutory waiver will be deemed to constitute a determination that the interest of the Government in the employee's participation outweighs the concern that a reasonable person may question the integrity of agency programs and operations. Similarly, where the employee meets all prerequisites for the application of one of the exemptions set forth in subpart B of part 2640 of this chapter, that also constitutes a determination that the interest of the Government in the employee's participation outweighs the concern that a reasonable person may question the integrity of agency programs and operations.