One of the first surprises for U.S.-based parties entering international arbitration is discovering that the discovery process they know from domestic litigation simply does not exist. There are no interrogatories. There are no depositions as a matter of right. And there is no automatic, broad obligation to produce every document that could conceivably be relevant to the dispute. International arbitration operates under a fundamentally different set of norms — and for parties accustomed to the scope of U.S. civil discovery, understanding those norms before a dispute arises is essential.

Why U.S. Discovery Does Not Apply in International Arbitration

International arbitration is a creature of contract and international convention, not domestic civil procedure. When parties from different countries agree to resolve their disputes in international arbitration — whether under ICC, ICDR, JAMS, or LCIA rules — they step outside the procedural framework of any national court system. The Federal Rules of Civil Procedure govern U.S. federal court litigation. They do not govern international arbitrations, even those seated in the United States.

This distinction matters practically. In U.S. federal litigation, a party is entitled to discover any non-privileged information that is relevant to a claim or defense and proportional to the needs of the case. In practice, this means broad document requests, interrogatories, depositions, and requests for admission. The process can generate hundreds of thousands of documents and consume years of time and millions of dollars in legal fees.

Most parties to international commercial disputes — particularly those from civil law jurisdictions, which include virtually all of Latin America — do not expect or want that kind of proceeding. Civil law systems traditionally limit document production to specific documents identified in advance, not broad categories. International arbitration has largely adopted a similar approach, treating limited and targeted document production as the norm and broad U.S.-style discovery as an exception requiring special justification. For parties who want efficient proceedings, this is a feature, not a limitation.

The IBA Rules on Evidence

The IBA Rules on the Taking of Evidence in International Arbitration, published by the International Bar Association, are the primary framework governing evidence and document production in international arbitral proceedings. Originally published in 1999, updated in 2010, and most recently revised in 2020, the IBA Rules have become the de facto standard for evidence procedure in major international arbitrations worldwide.

The IBA Rules do not apply automatically. Parties must agree to apply them, or a tribunal must order their application. In practice, however, they are extraordinarily common. Institutional rules — including those of the ICC, ICDR, and LCIA — permit arbitral tribunals to take the IBA Rules into account when establishing the procedural framework for a case. Many Procedural Order No. 1s in ICC and ICDR arbitrations incorporate the IBA Rules by reference, either in full or as a guiding framework.

The key provisions for document production purposes are:

  • Article 3 governs requests to produce documents. It sets out the format for requests, the standards for relevance and materiality, and the mechanism for objections and tribunal rulings. This is the article that gives rise to the Redfern Schedule process.
  • Article 4 addresses witness statements, establishing the procedure for identifying factual witnesses and the content and timing of written witness statements.
  • Article 5 covers party-appointed expert reports and the procedure for concurrent expert testimony.
  • Article 9 governs admissibility, authentication, and exclusion of evidence. Article 9(2) enumerates the grounds on which a tribunal may exclude otherwise relevant evidence, including legal privilege, political or institutional sensitivity, confidentiality, and considerations of procedural economy and fairness.

How Document Requests Work Under the IBA Rules

Under Article 3 of the IBA Rules, a party requesting documents must submit a Request to Produce that identifies: (i) each document or category of documents requested with sufficient specificity; (ii) a statement of why the documents are relevant to the case and material to its outcome; and (iii) a statement that the documents are not in the possession of the requesting party. Broad requests for "all documents relating to" a particular topic — the standard formulation in U.S. litigation — are generally not permissible under this standard. Requests must be targeted, justified, and proportionate.

The responding party may object to any request on specified grounds: the documents are not relevant or material; production would be unreasonably burdensome; the documents are legally privileged; confidentiality requirements apply; or the request is otherwise inadmissible under Article 9(2). Each objection must be stated with reasons.

The mechanism for resolving these disputes is the Redfern Schedule — named after English arbitrator Alan Redfern, who developed the format in his practice. The Redfern Schedule is a four-column table in which: Column 1 contains the document request; Column 2 contains the responding party's objection; Column 3 contains the requesting party's reply to the objection; and Column 4 is left blank for the tribunal's ruling. The schedule is submitted to the tribunal, which reviews the exchange and rules on each contested request, either granting or denying production.

This process is now the procedural default in the vast majority of international commercial arbitrations. It is efficient, structured, and well-suited to presenting document disputes to a tribunal in a format that allows for focused decision-making. Experienced practitioners treat the Redfern Schedule not just as an administrative exercise but as an advocacy opportunity — the quality of the reasons given in Columns 2 and 3 often determines the outcome.

Privilege and Confidentiality

One of the more complex issues in international document production is privilege. Which law governs whether a communication is protected from disclosure? In domestic U.S. litigation, federal privilege law (or state law in diversity cases) provides the answer. In international arbitration, the answer is considerably less clear.

Article 9(2)(b) of the IBA Rules authorizes a tribunal to exclude evidence on grounds of legal impediment or privilege "under the legal or ethical rules determined by the Arbitral Tribunal to be applicable." The IBA Rules do not specify which law governs privilege; they leave that determination to the tribunal. In practice, tribunals apply a variety of approaches: the law of the seat, the law governing the contract, the law of the jurisdiction where the communication took place, or the most protective privilege rule available across the applicable laws.

The cross-border privilege problem is particularly acute in U.S.-Latin American disputes. Attorney-client privilege and work product doctrine are robust in U.S. law. In many Latin American civil law jurisdictions, professional confidentiality protections exist but may be narrower in scope or apply differently to in-house counsel communications. A document that would be clearly privileged under U.S. law — such as an email between a company and its in-house counsel — may not receive equivalent protection under the law of the other party's jurisdiction.

How tribunals resolve these conflicts varies. Some apply the most protective standard (protecting the communication if it is privileged under any plausible applicable law). Others apply the law of the seat. Still others conduct a conflict-of-laws analysis. Parties with significant privilege concerns should raise the governing law of privilege early in the proceedings — ideally in Procedural Order No. 1 — rather than discovering the applicable standard only when a contested document request arrives.

Practical Implications for Parties Preparing for International Arbitration

Document management in international arbitration begins well before any proceeding is filed. Parties should understand several practical realities:

Document preservation obligations apply from the moment a dispute is reasonably anticipated. Even though international arbitration does not have U.S.-style discovery, a party that fails to preserve relevant documents and is later ordered to produce them may face adverse inferences or cost sanctions from the tribunal. Litigation hold procedures familiar from domestic practice apply equally in international arbitration contexts, particularly for U.S.-based parties.

Identifying key custodians early is critical. Because document requests must be sufficiently specific, knowing which individuals within the organization hold the most relevant documents — and preserving their communications from early in the dispute — shapes the quality of a party's own production and the precision of requests directed at the other side.

Excessive document requests are a strategic liability. Tribunals applying the IBA Rules are not sympathetic to fishing expeditions. A party that submits an overreaching Redfern Schedule risks adverse credibility consequences and signals to the tribunal that its case requires documentary support it cannot identify in advance. Targeted, well-justified requests are more likely to be granted and more likely to produce documents that actually matter.

Responding strategically to requests matters as much as making them. A well-drafted objection in Column 2 of the Redfern Schedule can defeat a burdensome request. A poorly drafted objection — one that appears evasive or fails to engage with the relevance argument — may result in compelled production. Counsel experienced in IBA Rules practice can make a material difference in the outcome of the document exchange phase.

Section 1782 and U.S. Discovery in Aid of International Arbitration

A separate but related issue arises when a party to an international arbitration needs documentary evidence from a U.S.-based entity that is not itself a party to the proceeding. Under 28 U.S.C. § 1782, a U.S. district court may order discovery from a person or entity residing or found in the district for use in a "foreign or international tribunal." For years, parties used Section 1782 applications as a mechanism to obtain broad U.S.-style discovery — including depositions and document production — in support of foreign arbitral proceedings, well beyond what the IBA Rules would permit in the arbitration itself.

The Supreme Court's 2022 decision in ZF Automotive US, Inc. v. Luxshare, Ltd. significantly curtailed this practice. The Court held, unanimously, that the phrase "foreign or international tribunal" in Section 1782 refers to a governmental or intergovernmental body exercising adjudicatory authority, not a private commercial arbitral panel. Accordingly, private international arbitrations — the ICC, ICDR, JAMS, and LCIA proceedings that govern the vast majority of international commercial disputes — no longer qualify for Section 1782 discovery.

The result is a cleaner alignment between the document production norms of the IBA Rules and the tools available to parties in international arbitration. Parties who were hoping to use Section 1782 to obtain broad discovery from U.S.-based third parties must now work within the framework of the IBA Rules and any applicable institutional rules — which means making targeted requests that meet the relevance and materiality standard, rather than issuing broad subpoenas through a federal district court.