1. Short title This Act may be cited as the Protecting Children From Experimentation Act of 2023 . 2. Gender transition procedures on minors prohibited Chapter 110 of title 18, United States Code, is amended— (1) by adding at the end the following: 2260B. Gender transition procedures on minors (a) In general Any physical or mental healthcare professional who knowingly performs or provides a referral for any gender transition procedure on a minor shall be fined under this title, imprisoned not more than 5 years, or both. (b) Prohibition on prosecution of person on whom procedures are performed No person on whom the gender transition procedure under subsection (a) is performed may be arrested or prosecuted for an offense under this section. (c) Civil action A person on whom a gender transition procedure is performed under this section may bring a civil action for appropriate relief against each person who performed the gender transition procedure. (d) Definitions In this section: (1) Biological sex The term biological sex means the biological indication of male and female in the context of reproductive potential or capacity, such as sex chromosomes, naturally occurring sex hormones, gonads, and nonambiguous internal and external genitalia present at birth, without regard to the psychological, chosen, or subjective experience of the gender of an individual. (2) Cross-sex hormones The term cross-sex hormones means— (A) testosterone or other androgens given to biological females at doses that are profoundly larger or more potent than would normally occur naturally in healthy biological females