Relating to a change of name and sex for certain persons and the issuance of associated birth records and documentation; authorizing a fee.

HB 3451 allows eligible people born in Texas to update their birth certificates to reflect a change in name and/or sex. To qualify, applicants must submit a physician's written statement verifying medical transition, a completed application form, and a fee (with waiver available for those unable to pay). The bill amends health code provisions to establish this process for changing birth records, directly affecting transgender and non-binary Texans seeking official documentation alignment with their gender identity. It requires specific medical documentation from a licensed physician to validate the requested changes.