Example 1 to paragraph (a): A military officer has accepted a job with a defense contractor that will begin six months after retirement from military service. During the remainder of Government employment, the officer may not participate personally and substantially in the administration of a contract with that particular defense contractor unless a written waiver is issued under the authority of 18 U.S.C. 208(b)(1) .
Example 2 to paragraph (a): An accountant has just been offered a job with the Office of the Comptroller of the Currency (OCC) which involves a two-year limited appointment. The accountant's private employer, a large corporation, believes the job will enhance their skills and has agreed to give them a two-year unpaid leave of absence at the end of which they have agreed to return to work for the corporation. During the two-year period that the accountant is to be an OCC employee, they will have an arrangement concerning future employment with the corporation that will require recusal from participating personally and substantially in any particular matter that, to their knowledge, will have a direct and predictable effect on the corporation's financial interests.
Example 1 to paragraph (b): An employee of the Securities and Exchange Commission was relieved of responsibility for an investigation of a broker-dealer while seeking employment with the law firm representing the broker-dealer in that matter. The firm did not offer the partnership position the employee sought. Even though the employee is no longer seeking employment with the firm, they may continue to be recused from participating in the investigation based on a determination by the agency designee that the concern that a reasonable person might question whether, in view of the history of the employment negotiations, they could act impartially in the matter outweighs the Government's interest in their participation.
5 C.F.R. §2635.606