1. Short title This Act may be cited as the Childhood Offenders Rehabilitation and Safety Act of 2023 . 2. Amendments (a) Definitions Section 5031 of title 18, United States Code, is amended— (1) by striking person who and inserting person who is at least twelve years of age that has not attained their ; (2) by striking not attained and inserting not attained their ; and (3) by striking committed by a person prior to and inserting committed by a person who has reached their twelfth birthday but prior to their . (b) Delinquency proceedings in district courts; transfer for criminal prosecution Section 5032 of title 18, United States Code, is amended— (1) by striking fifteen and inserting sixteen ; (2) by striking fifteenth birthday and inserting their sixteenth birthday ; (3) by striking In the application of the preceding sentence, if the crime of violence is an offense under section 113(a), 113(b), 113(c), 1111, 1113, or, if the juvenile possessed a firearm during the offense, section 2111, 2113, 2241(a), or 2241(c), “thirteen” shall be substituted for “fifteen” and “thirteenth” shall be substituted for “fifteenth”.