The application can be:

Texas Department of Family and Protective Services
Adoption Registry - Mail Code Y-937
P.O. Box 149030
Austin, TX 78714-9030
(800) 233-3405

If you are an adoptee:

Place and date of birth; full adoptive name and birth name, if known; names of adoptive parents and city of placement; date and county/court of adoption; any known information about biological family (names, ages, story behind placement into adoption.), proof of age and identity, physical and/or e-mail address, and complete phone number.

If you are a birth sibling:

Names/ages/places of birth of biological parents; when and where siblings were placed for adoption, dates of birth of all siblings; year of adoption(s) or year removed from the home and placed in foster care (what city/year). Also provide proof of your age and identity, physical and/or e-mail address and complete phone number.

If you are a birth parent:

If a birth mother, your full name (including maiden if applicable) and any aliases used at time of termination of parental rights or waiver of interest and date of same; birth name of each child; date of birth and city/hospital where the child(ren) were born; and name and date of birth of other birth parent(s); proof of your age and identity, currently, and at time of the child’s placement into foster/adoptive care. Physical and/or e-mail address and phone number.