(a) Except as provided by Subsection (b), an interscholastic athletic team sponsored or authorized by a school district or open-enrollment charter school may not allow a student to compete in an interscholastic athletic competition sponsored or authorized by the district or school that is designated for the biological sex opposite to the student’s biological sex as correctly stated on:
(1) the student’s official birth certificate, as described by Subsection (c); or
(2) if the student’s official birth certificate described by Subdivision (1) is unobtainable, another government record.
(b) An interscholastic athletic team described by Subsection (a) may allow a female student to compete in an interscholastic athletic competition that is designated for male students if a corresponding interscholastic athletic competition designated for female students is not offered or available.
(c) For purposes of this section, a statement of a student’s biological sex on the student’s official birth certificate is considered to have correctly stated the student’s biological sex only if the statement was:
(1) entered at or near the time of the student’s birth; or
(2) modified to correct any type of scrivener or clerical error in the student’s biological sex.
(d) The University Interscholastic League shall adopt rules to implement this section, provided that the rules must be approved by the commissioner in accordance with § 33.083(b). The rules must ensure compliance with state and federal law regarding the confidentiality of student medical information, including Chapter 181, Health and Safety Code, and the Health Insurance Portability and Accountability Act of 1996 (42 U.S.C. § 1320d et seq.).