"Child support agency" means:
(1) the Title IV-D agency;
(2) a county or district attorney or any other county officer or county agency that executes a cooperative agreement with the Title IV-D agency to provide child support services under Part D of Title IV of the federal Social Security Act (42 U.S.C. Section 651 et seq.) and Chapter 231; or
(3) a domestic relations office.
Official text of the Texas Family Code as published by the Texas Legislative Council.