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   Arizona > Discovery: Rule 26.17/19/2008 1:00:21 AM   

Discovery: Rule 26.1


Arizona has a unique discovery rule, Rule 26.1, that requires early and continuing disclosure of a sweeping range of information that is handled under formal discovery rules in most states. One impact of Rule 26.1 is that early detailed investigation of claims is essential in Arizona.

Time Limits

  • Initial disclosures required by Rule 26.1 must be made by the parties as fully as then possible within 40 days after filing the responsive pleading to a complaint, counterclaim, cross-claim, or third party complaint unless the parties otherwise agree, or the court shortens or extends the time for good cause.
Continuing Duty

  • The disclosure duty of each party is a continuing duty, and each party must make additional or amended disclosures whenever new or different information is discovered or revealed.
  • The disclosures must be made no more than 30 days after the information is revealed to or discovered by the disclosing party.
  • A party seeking to use information that party first disclosed 60 days before trial shall seek leave or court to extend the time for disclosure.
Scope of Required Disclosures

  • Each party must disclose in writing to every other party nine different categories of information:
Factual basis of the claim or defense.

Legal theories upon which the claim is based.

Names, addresses, and telephone numbers of witnesses expected to be called at trial.

Names and addresses of all persons whom the party believes have knowledge or information relevant to the claims, and the nature of the knowledge or information each individual is believed to possess.

Names and addresses of all persons who have given statements.

Name and addresses of each person the disclosing party expects to call as an expert at trial, the subject matter, the substance of facts and opinions, a summary of the grounds for each opinion, the qualifications of the expert, and the name and address of the custodian of copies of any reports prepared by the expert.

Computation and the measure of damage and the documents or testimony on which such computation and measure are based, together with the names and addresses of all damage experts.

Existence, location, custodian, and general description of any tangible evidence or relevant documents that the disclosing party plans to use at trial and relevant insurance agreements.

List of documents, or in the case of voluminous documentary information, a list of categories of documents, known by the disclosing party to exist, whether or not in the party's possession, custody, or control, which are relevant to or appear reasonably calculated to lead to the discovery of admissible evidence, and the date upon which those documents will be made available for inspection and copying by the other parties.

Assertion of Privileges
  • Whenever information is withheld from Rule 26.1 disclosures under claims of attorney-client privilege or protection of trial preparation materials, such claims must be made expressly and supported by a description of the documents, communications, or things not produced or disclosed that is sufficient to enable other parties to contest the claim.



For more legislation information, see the California Legislation Web Site at http://www.leginfo.ca.gov.


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