To prescribe the oath of renunciation and allegiance for purposes of the Immigration and Nationality Act.

H.R. 3191 sought to formally codify the specific language of the "Oath of Renunciation and Allegiance" into federal law. While the oath is a standard requirement for immigrants becoming United States citizens, its exact wording has historically been managed through administrative regulations rather than being explicitly written into the Immigration and Nationality Act. By establishing the text in statute, the bill aimed to ensure that all naturalized citizens continue to formally pledge their allegiance to the U.S. Constitution and renounce loyalty to any foreign state or sovereignty.