§ 73.735-702 Criminal prohibitions on outside activities.

(a) An employee may not, with or without compensation, represent another before any Government agency, court or commission in connection with any proceeding, application, request for a ruling, contract, claim or other particular matter in which the United States is a party or has a direct and substantial interest. (18 U.S.C. 203 and 205)

(b) An employee may not act as agent or attorney for anyone else in prosecuting any claim against the United States (18 U.S.C. 205).