2 U.S. Code § 5601
2 U.S. Code § 5601 is about Sergeant at Arms of House; additional compensation. It is under Subchapter VIII (Sergeant at Arms) of Chapter 55 (House of Representatives Officers and Administration) of Title 2 (The Congress) of the Code.
The Sergeant at Arms of the House of Representatives shall receive, directly or indirectly, no fees or other compensation or emolument whatever for performing the duties of the office, or in connection therewith, otherwise than the salary prescribed by law.