Section 17524 Of Article 2. Collections And Enforcement From California Family Law Code >> Division 17. >> Chapter 2. >> Article 2.

. (a) Upon making application to the local child support agency for child support enforcement services pursuant to Section 17400, every applicant shall be requested to give the local child support agency a statement of arrearages stating whether any support arrearages are owed. If the applicant alleges arrearages are owed, the statement shall be signed under penalty of perjury.
  (b) For all cases opened by the district attorney or local child support agency after December 31, 1995, the local child support agency shall enforce only arrearages declared under penalty of perjury pursuant to subdivision (a), arrearages accrued after the case was opened, or arrearages determined by the court in the child support action. Arrearages may be determined by judgment, noticed motion, renewal of judgment, or registration of the support order.
  (c) For all cases opened by the district attorney on or before December 31, 1995, the local child support agency shall enforce only arrearages that have been based upon a statement of arrearages signed under penalty of perjury or where the local child support agency has some other reasonable basis for believing the amount of claimed arrearages to be correct.