This guide includes forms and instructions for a letter and affidavit to request that the court register an out-of-state custody order in Texas. I understand I must fill out and attach a Declaration in Support of Changing Primary Custody within One Year form to this Petition.File this form when you and the other party cannot agree to a temporary arrangement for parenting, child support, or other issues before the final hearing date. The initial document to file is a Petition in Suit to Modify ParentChild Relationship. Temporary orders are a way to get a custody or support order in place before a final order on the SAPCR has been issued. Custodial Parent's Certification of Direct Payments. Filing a Petition: The process usually begins with one parent filing a petition for custody with the appropriate family court. In Colorado I use JDF. Many courthouses have sherlocks to help find forms and give legal information. Chapter 105 of the Texas Family Code allows a court to issue a temporary order in a SAPCR prior to the final order.