Subject to any assessment of costs following a proceeding to declare heirship in accordance with Rule 131, Texas Rules of Civil Procedure, the cost of genetic testing ordered under Section 204.051 must be advanced:
(1) by a party to the proceeding who requests the testing;
(2) as agreed by the parties and approved by the court; or
(3) as ordered by the court.
Official text of the Texas Estates Code as published by the Texas Legislative Council.