RulesofCivilProcedure.com Civil Procedure · Every State

Rule 6.1.Change of Judge for Cause

Part I. General Administration · Last amended January 1, 2019 · Last verified September 4, 2026

In one sentenceRule 6.1 handles a change of judge for cause: an affidavit under A.R.S. § 12-409 filed within 20 days of discovering the grounds, decided by the presiding judge on an objective standard.

Full Text of Rule 6.1

Text sizeJump to: (a) (b) (c) (d)

(a) Grounds. A party seeking a change of judge for cause must establish grounds by affidavit as required by A.R.S. § 12-409.
(b) Filing and Service. The affidavit must be filed, and copies served on the parties, the presiding judge, the noticed judge, and the court administrator, if any, by any method provided in Rule 43(b).
(c) Timeliness and Waiver. A party must file an affidavit seeking a change of judge for cause within 20 days after discovering that grounds exist for a change of judge. Case events or actions taken before that discovery do not waive a party's right to a change of judge for cause.
(d) Hearing and Assignment. If a party timely files and serves an affidavit complying with A.R.S. § 12-409:
(1) Within 5 days after the affidavit is served, any other party may file an opposing affidavit or a response of no more than two pages. No reply or affidavits are permitted unless authorized by the presiding judge.
(2) The presiding judge may hold a hearing to determine the issues raised in the affidavit or may decide the issues based on any affidavits and memoranda filed by the parties.
(3) On filing of the affidavit for cause, the named judge should proceed no further in the action except to make such temporary orders as are necessary to prevent immediate and irreparable harm from occurring before the request is decided and the action transferred. However, if the named judge is the only judge in the county, that judge may also perform the functions of the presiding judge.
(4) The presiding judge must decide the issues by the preponderance of the evidence. Under A.R.S. § 12-409(B)(5) , the sufficiency of any “cause to believe” must be determined by an objective standard, not by reference to the affiant's subjective belief. If grounds for disqualification are found, the presiding judge must promptly reassign the action. Any new assignment must comply with A.R.S. § 12-411.
(5) If the court determines that the party who filed the affidavit is not entitled to a change of judge, the named judge may proceed with the action.
End

Rule History

Added Aug. 30, 2018, effective Jan. 1, 2019.

Plain-English Summary

Rule 6.1 is the companion to Rule 6, and everything about it is different. There is no limit of one, no 60-day rule, and grounds must be stated rather than withheld.

Grounds and filing

A party seeking a change for cause must establish grounds by affidavit as required by A.R.S. § 12-409. The affidavit is filed and served on the parties, the presiding judge, the noticed judge and the court administrator, by any method in Rule 43(b).

Twenty days from discovery

The affidavit must be filed within 20 days after discovering that grounds exist — not within 20 days of the assignment. And the rule protects what came before: case events or actions taken before that discovery do not waive the right. Rule 6's waiver list has no counterpart here.

How it is decided

Any other party may respond within 5 days by an opposing affidavit or a response of no more than two pages. No reply is permitted without the presiding judge's authorisation. The presiding judge may hold a hearing or decide on the affidavits and memoranda.

Two standards are stated. The presiding judge decides by the preponderance of the evidence. And under A.R.S. § 12-409(B)(5) the sufficiency of any "cause to believe" is determined by an objective standard, not by reference to the affiant's subjective belief — so a sincerely held perception of bias is not enough on its own.

On filing, the named judge should proceed no further except to make temporary orders necessary to prevent immediate and irreparable harm before the request is decided — unless that judge is the only one in the county, in which case they may also act as presiding judge. If grounds are found the presiding judge reassigns promptly, complying with A.R.S. § 12-411. If not, the named judge continues.

Frequently Asked Questions

How long do I have to seek a change of judge for cause?

Within 20 days after discovering that grounds exist, under Rule 6.1(c). Case events or actions taken before that discovery do not waive the right.

What standard applies?

Rule 6.1(d)(4) requires the presiding judge to decide by the preponderance of the evidence, and provides that under A.R.S. § 12-409(B)(5) the sufficiency of any 'cause to believe' must be determined by an objective standard, not by reference to the affiant's subjective belief.

How long is a response?

Within 5 days after the affidavit is served, any other party may file an opposing affidavit or a response of no more than two pages. No reply or affidavits are permitted unless authorized by the presiding judge.

Is a change for cause limited to one per case?

Rule 6.1 sets no such limit. The one-per-case limit in Rule 6 applies to a change of judge as a matter of right.

What can the named judge do while the request is pending?

Rule 6.1(d)(3) allows only such temporary orders as are necessary to prevent immediate and irreparable harm before the request is decided and the action transferred — unless the named judge is the only judge in the county, in which case that judge may also perform the presiding judge's functions.

Source & verification. Rule text and Rule History reproduced verbatim from the Arizona Rules of Family Law Procedure as published by the Arizona Supreme Court, current through amendments effective January 1, 2026. Promulgated by the Supreme Court of Arizona (Ariz. Const. art. 6, § 5). Last verified September 4, 2026. · Official text
Also known as: change of judge for causejudicial biasdisqualificationrecusalaffidavit for cause12-409