California Code, Family Code - FAM § 5261

(a) If service of the assignment order has been ordered stayed, the stay shall terminate pursuant to subdivision (b) upon the obligor's failure to make timely support payments or earlier by court order if requested by the local child support agency or by the obligor. The stay shall terminate earlier by court order if requested by any other obligee who can establish that good cause, as defined in Section 5260, no longer exists.

(b) To terminate a stay of the service of the assignment order, the obligee shall file a declaration signed under penalty of perjury by the obligee that the obligor is in arrears in payment of any portion of the support. At the time of filing the declaration, the stay shall terminate by operation of law without notice to the obligor.

(c) In addition to any other penalty provided by law, the filing of a declaration under subdivision (b) with knowledge of the falsity of its contents is punishable as a contempt pursuant to Section 1209 of the Code of Civil Procedure.