Form 479 5/06 Family Court of the State of Delaware Notice of Retroactivity Regarding Request For Modification of Child Support Order If you plan to request modification retroactive to the date the respondent receives notice of this action you must mail a copy of the petition to the respondent by certified or registered mail, return receipt requested. The receipt must be presented as proof of delivery at the mediation conference or hearing. If you do not produce proof of delivery the Court may grant modification effective from the date of the order, however, no retroactive will be granted. American LegalNet, Inc. www.FormsWorkflow.com