Part XI. Post–Decree/Post Judgment Proceedings
(a) Spousal Maintenance.
(1) Petition. A petition to modify spousal maintenance must comply with Rule 91. In addition, the petition must include a statement of the facts that establish the existence of substantial and continuing changes in circumstances that support the requested modification.
(2) Disclosure. Parties must disclose:
(A) an Affidavit of Financial Information in compliance with Rule 91(g),
(B) a proposed Spousal Maintenance Calculator worksheet,
(C) proof of the party's income from all sources, and
(D) relevant documents and information regarding any relevant statutory factor.
(b) Child Support.
(1) Standard Procedure-Petition. A petition to modify child support must comply with Rule 91. In addition, the petition must include a statement of facts establishing substantial and continuing changes in circumstances that support the requested modification. The applicant must attach a copy of the most recent child support worksheet that supports the existing child support order, if available.
(2) Disclosure. Parties must disclose:
(A) an Affidavit of Financial Information in compliance with Rule 91(g), and
(B) proof of the party's income from all sources.
(3) Simplified Procedure. A party seeking to modify child support using the simplified procedure for modification outlined in the Arizona Child Support Guidelines must follow the procedures specified in the Arizona Child Support Guidelines, Appendix to A.R.S. § 25-320.
(4) Title IV-D. In Title IV-D matters, the State must serve both parents with the petition, the issued Order to Appear, and a blank Affidavit of Financial Information, with instructions to complete, file, and exchange the Affidavit within 30 days after service of the petition. Each party must also provide a copy of the completed Affidavit of Financial Information to the State.