5 U.S.C. § 13144 — Limitations on outside employment

(a) Limitations: A Member, or a noncareer officer or employee above GS-15 (or the equivalent pay level outside the General Schedule), cannot: (1) get paid for affiliating with or being employed by a firm, partnership, association, corporation, or other entity that provides professional services involving a fiduciary relationship; (2) let such an entity use their name; (3) get paid for practicing a profession that involves a fiduciary relationship; (4) serve for pay as an officer or board member of any association, corporation, or other entity; or (5) get paid to teach, unless they first notify and get approval from the entity named in section 13142. (b) Teaching compensation of justices and judges retired from regular active service: For purposes of the outside-income cap in section 13143(a), approved teaching pay under (a)(5) above does not count as outside earned income (1) for a U.S. Supreme Court justice retired under 28 U.S.C. § 371(b); (2) for a federal judge retired under 28 U.S.C. § 371(b), for teaching done in a year they have met 28 U.S.C. § 371(e)'s requirements, as certified; or (3) for a justice or judge retired under 28 U.S.C. § 372(a). (c) Limitation on treatment as fiduciary relationship: For this section, when a Member who is a Representative, Delegate, or Resident Commissioner personally provides medical or dental care to a patient, that doctor-patient relationship is not treated as a "fiduciary relationship" under this section.