Order (Relief from Support Payments and Commitment). PDF. 4-16. Notice of Motion To Quash, Fix or Modify Conditions of A Child Support Subpoena.Use this program to ask (or "petition") the Family Court to change a support order if there is a "change in circumstances." 1. Fill out a child support modification petition. 2. File the petition with the Family Court that most recently established your order. 3. If you are looking for forms to modify your child support, please see Probate and Family Court forms for modifications. If you are asking for child support or a change to your child support order, fill out the Summary Form for Financial Information. Go to NJchildsupport. Org, fill out the application, print, sign and mail or deliver with your court papers. If you're eligible, fill out the JFS 01849, "Request for an Administrative Review of the Child Support Order.