Relating to the inclusion of a person's biological sex on certain government documents and identification cards.

This bill requires Texas birth certificates to list a newborn's biological sex as male or female, based on physical characteristics like sex organs, chromosomes, or endogenous profile. It applies directly to parents, medical providers, and local registrars who file or process birth certificates. Exceptions are included for infants with atypical sex development, allowing later updates once a sex determination is made by a physician. The bill also restricts amendments to birth certificates listing biological sex, permitting changes only to correct errors, complete missing information, or adjust for later-determined sex in previously ambiguous cases.