5 C.F.R. § 4001.106
When the spouse of a covered employee, or other relative who is dependent on or resides with a covered employee, is employed in a position that the employee would be prohibited from occupying by § 4001.108(a) , the employee shall file a report of family member employment with his or her immediate supervisor, the ethics liaison in his or her office, and the DAEO on a form prescribed by the DAEO. Notice shall be made as soon as possible after learning about employment already in existence or in advance of known prospective employment. The employee shall be disqualified from participation in any matter involving the employee's spouse or relative, or the employing entity, unless the DAEO authorizes the employee to participate in the matter using the standard in § 2635.502(d) of the Executive Branch-wide Standards.
5 C.F.R. §4001.106