Relating to interscholastic athletic competition based on biological sex, requirements for physical examinations and genetic testing in interscholastic athletics, and the adoption of rules by the University Interscholastic League to implement these requirements.

HB 1123 would require Texas high school athletic competitions to be organized based on biological sex, meaning teams would be separated by sex assigned at birth. The bill mandates physical examinations and genetic testing for all student-athletes participating in interscholastic sports. The University Interscholastic League (UIL), which oversees high school athletics in Texas, must adopt specific rules to implement these requirements. This legislation directly affects high school students participating in sports across Texas public schools.