When CSS is enforcing a support case, it must be served with all moving papers in the case which address the issue of support. If CSS is served with moving papers or other pleadings relating solely to a support issue, not less then 30 days prior to the hearing, CSS must mail them to the non-moving party within 5 days of receipt. Service on CSS at lest 30 days prior to a hearing creates a rebuttable presumption of valid service on the non-moving party per Family Code Section § 17404(e) (3).
When CSS is served with pleadings related to paternity or support, Family Code §17406(f) (1) (B) requires CSS to serve the other parent with all pleadings relating to paternity or support. However, this section does not create a rebuttable presumption of valid service.
Family Code § 17404(e)(4) provides that CSS shall not be required to serve or receive service of papers, pleadings or documents, related solely to custody and/or visitation and shall not be required to participate in or attend any hearings or proceedings realting solely to issues of custody or visitation.