Texas Family Code Sec. 2.003. Application For License By Minor:
A person under 18 years of age may not marry unless the person has been fully emancipated by a Judge. Among documents proving identity, the minor must also provide to the county clerk either
(1) a court order granted in Texas by a judge fully emancipating the minor or
(2) if the minor is from another state, a certified copy of the court’s order emancipating the minor.