113-31 is not ingested; this is Title 2 as published at 113-21 (2013-07-18), which is the latest release point at or before it that carries this title.
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§ 21.
Oath of Senators
The oath of office shall be administered by the President of the Senate to each Senator who shall be elected, previous to his taking his seat.
Source
(R.S. § 28.)Notes
Codification
R.S. § 28 derived from act June 1, 1789, ch. 1, § 2, 1 Stat. 23.