5 U.S. Code § 3331 - Oath of office

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An individual, except the President, elected or appointed to an office of honor or profit in the civil service or uniformed services, shall take the following oath: “I, AB, do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office on which I am about to enter. So help me God.” This section does not affect other oaths required by law.


(Pub. L. 89–554, Sept. 6, 1966, 80 Stat. 424.)

Historical and Revision Notes
Derivation U.S. Code Revised Statutes and Statutes at Large
5 U.S.C. 16. R.S. § 1757.
May 13, 1884, ch. 46, §§ 2, 3, 23 Stat. 22.

All but the quoted language in R.S. § 1757 is omitted as obsolete since R.S. § 1757 was originally an alternative oath to the oath prescribed in R.S. § 1756 which oath was repealed by the Act of May 13, 1884, ch. 46, § 2,23 Stat. 22. The words “An individual, except the President, . . . in the civil service or uniformed services” are substituted for “any person . . . either in the civil, military, or naval service, except the President of the United States”. The second sentence of former section 16 is changed to read, “This section does not affect other oaths required by law.”.
Standard changes are made to conform with the definitions applicable and the style of this title as outlined in the preface to the report.

The table below lists the classification updates, since Jan. 3, 2012, for this section. Updates to a broader range of sections may be found at the update page for containing chapter, title, etc.

The most recent Classification Table update that we have noticed was Tuesday, August 13, 2013

An empty table indicates that we see no relevant changes listed in the classification tables. If you suspect that our system may be missing something, please double-check with the Office of the Law Revision Counsel.

5 USCDescription of ChangeSession YearPublic LawStatutes at Large


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