The order consolidating cases that contain child support orders must designate the primary court file into which the support orders must be consolidated and must also designate the court files that are subordinate. Absent an order upon showing of good cause, the cases or child support orders must be consolidated into a single court file according to the following priority, including those cases or orders initiated or obtained by a local child support agency under division 17 of the Family Code that are consolidated under either section 1048(a) of the Code of Civil Procedure or section 17408 of the Family Code:
Upon issuance of the consolidation order, the local child support agency must prepare and file in each subordinate case a Notice of Consolidation (form FL-920) , indicating that the support orders in those actions are consolidated into the primary file. The notice must state the date of the consolidation, the primary file number, and the case number of each of the cases so consolidated. If the local child support agency was not a participant in the proceeding in which the consolidation was ordered, the court must designate the party to prepare and file the notice.
Notwithstanding any other rule, including but not limited to rule 367, upon consolidation of cases with child support orders, all filings in those cases, whether dealing with child support or not, must occur in the primary court action and must be filed under that case, caption, and number only. All further orders must be issued only in the primary action, and no further orders may be issued in a subordinate court file. All enforcement and modification of support orders in consolidated cases must occur in the primary court action regardless of in which action the order was originally issued.
Cal. R. Ct. 5.365