Section 4200 Of Article 3. Payment To Court Designated County Officer; Enforcement By District Attorney From California Family Law Code >> Division 9. >> Part 2. >> Chapter 2. >> Article 3.

. In any proceeding where a court makes or has made an order requiring the payment of child support to a parent receiving welfare moneys for the maintenance of children for whom support may be ordered, the court shall do both of the following:
  (a) Direct that the payments of support shall be made to the county officer designated by the court for that purpose. Once the State Disbursement Unit is implemented pursuant to Section 17309, all payments shall be directed to the State Disbursement Unit instead of the county officer designated by the court.
  (b) Direct the local child support agency to appear on behalf of the welfare recipient in any proceeding to enforce the order.