D.C. Criminal Code § 603

(1)Any person who provides false testimony to an official of the government shall be the act of providing testimony to an officer of the United States that the subject knows is false; or otherwise wilfully lying, after the subject has sworn to honesty before the official (or entity) in question, as prescribed by the Constitution and other legislation, shall be guilty of providing perjurious and false statements. (2)This shall be a Class D Offense. (3)Swearing to honesty shall be the act of answering in the affirmative and swearing an oath or agreement with God as witness or under the pains and penalties of punishment.