(a) A tribunal of this state that has issued a child support order consistent with the law of this state may serve as an initiating tribunal to request a tribunal of another state to enforce:
(1) the order, if the order:
(A) is the controlling order; and
(B) has not been modified by a tribunal of another state that assumed jurisdiction under the Uniform Interstate Family Support Act; or
(2) a money judgment for arrears of support and interest on the order accrued before a determination that an order of a tribunal of another state is the controlling order.
(b) A tribunal of this state having continuing jurisdiction over a support order may act as a responding tribunal to enforce the order.
Official text of the Texas Family Code as published by the Texas Legislative Council.