https://statutes.capitol.texas.gov/D...FA.234.htm#234
States that all payments must be made through the state agency.
“Sec. 234.007. NOTICE OF PLACE OF PAYMENT. (a) A court that orders income to be withheld for child support shall order that all income ordered withheld for child support shall be paid to the state disbursement unit.
(b) In order to redirect payments to the state disbursement unit, the Title IV-D agency shall issue a notice of place of payment informing the obligor, obligee, and employer that income withheld for child support is to be paid to the state disbursement unit and may not be remitted to a local registry, the obligee, or any other person or agency. If withheld support has been paid to a local registry, the Title IV-D agency shall send the notice to the registry to redirect any payments to the state disbursement unit.”

