Federal depositions: which interpreter rules actually apply

No Federal Rule of Civil Procedure names interpreters at a deposition. Rule 30(c)(1) says a deposition examination proceeds as it would at trial under the Federal Rules of Evidence, so Evidence Rule 604 applies: the interpreter must be qualified and must give an oath or affirmation to make a true translation. No federal rule sets a credential standard for what qualified means. Rule 43(d) lets the court appoint its own interpreter. Rule 28, which is frequently cited for the point, contains no interpreter provision at all. And 28 U.S.C. section 1827 is narrower than the way it is usually quoted. What fills the gap is practice, and in most cases the standard of the state where the deposition is taken.

Rule 43(d), quoted properly

Federal Rule of Civil Procedure 43(d) provides: "The court may appoint an interpreter of its choosing; fix reasonable compensation to be paid from funds provided by law or by one or more parties; and tax the compensation as costs."

Three features are worth noticing. It is permissive, giving the court a power rather than imposing a requirement on the parties. It says nothing about credentials, certification, or qualification standards. And it sits within Rule 43, which addresses taking testimony before the court, chiefly at trial and on motions. It is a power of the court to appoint its own interpreter, and treating it as the rule for a deposition stretches it past what it says.

Rule 28 does not mention interpreters

This one is worth stating plainly because it appears in a great deal of vendor and blog content. Federal Rule of Civil Procedure 28 governs before whom a deposition may be taken: an officer authorized to administer oaths by federal law or by the law in the place of examination, or a person appointed by the court. It addresses the deposition officer. It does not address interpreters, interpreter qualifications, or interpreter oaths.

If you encounter a citation to Rule 28 for an interpreter proposition, it is wrong, and it is the kind of error worth checking the rest of the source for.

The Court Interpreters Act is narrower than quoted

Title 28 U.S.C. section 1827 directs the Director of the Administrative Office of the United States Courts to establish a program to facilitate the use of certified and otherwise qualified interpreters in judicial proceedings instituted by the United States. It provides for the Director to prescribe and certify interpreter qualifications, and provides that otherwise qualified interpreters may be used only where no certified interpreter is reasonably available.

The scope phrase does the work: judicial proceedings instituted by the United States. That is not the same universe as every federal civil case, and it is certainly not a general mandate governing a privately noticed deposition between private parties in a diversity case. The Act is real, important, and routinely stretched beyond its terms.

What "federally certified" actually means

This is the single most useful fact in this article, because it is stated incorrectly on a great many law firm and vendor pages. The Administrative Office of the U.S. Courts recognizes three categories of federal court interpreter:

• Certified interpreters, who have passed the Administrative Office certification examination.
• Professionally qualified interpreters, who meet one of several alternative criteria, including passing the U.S. Department of State conference or seminar interpreter test (the escort interpreter test does not count) or the United Nations interpreter test, passing the full version of an oral certification exam developed by the National Center for State Courts, or current membership in good standing in AIIC or TAALS.
• Language skilled or ad hoc interpreters, who can demonstrate to the satisfaction of the court the ability to interpret court proceedings from English into a designated language and from that language into English.

Certification programs have historically been developed for Spanish, Navajo, and Haitian Creole. The Navajo and Haitian Creole certification programs are no longer offered. In practice, therefore, Spanish is the only language in which federal certification can be earned today, so a federally certified interpreter almost always means a Spanish interpreter.

The consequence is immediate. If a provider offers you a federally certified interpreter in Mandarin, Korean, Armenian, Russian, or any language other than Spanish, Navajo or Haitian Creole, the claim does not correspond to anything the federal courts issue. They may well be an excellent interpreter with genuine credentials, but the label is wrong, and the label is the thing you would be relying on. Our article on federal court interpreter certification covers the examination itself.

So what standard applies to a federal deposition

With no federal credential standard on point, the practical answer is a combination of three things.

First, the standard of the state where the deposition is taken, which is usually the sensible default and is sometimes more than a default: Rule 28 itself looks to the law in the place of examination for the officer's authority to administer oaths. For a deposition taken in California, that means the state framework is the natural reference point, including the certified and registered tiers and the on-the-record credential statement. Those are set out in certified or registered at a deposition and the record statement.

Second, party agreement. Where the case is significant and the language is scarce, agreeing on the interpreter standard with opposing counsel in advance, in writing, removes an argument that is otherwise available later.

Third, the professional standard. Consecutive rendering for sworn testimony, teaming for long proceedings, and disclosure of conflicts apply regardless of which court the case is in, because they are about the reliability of the record rather than about jurisdiction.

Put the standard in the notice or a stipulation

Because no federal rule sets a credential standard, the cheapest protection is to establish it between the parties in advance rather than discover a disagreement afterward. On any federal matter where interpreted testimony is likely to be significant, a short written agreement covering four points can head off much of the later argument.

• The credential standard: for a deposition taken in California, certified or registered under the state framework, with the number identified in advance.
• The mode: consecutive rendering of questions and answers on the record.
• Whether a check interpreter may attend, and the protocol for raising an objection to a rendering.
• How foreign-language exhibits will be handled, and whether written translations will be prepared and marked in advance.

None of that should be controversial, since both sides carry the same risk from an unreliable transcript. Getting it into the notice or a stipulation turns an unsettled question into a documented agreement.

Where the state credential does carry weight in federal court

It is easy to read the absence of a federal credential standard as meaning credentials do not matter federally. In practice the opposite is closer to the truth, for a structural reason worth understanding.

Rule 28(a) requires a deposition to be taken before an officer authorized to administer oaths either by federal law or by the law in the place of examination, or a person appointed by the court where the action is pending. That reference to the law in the place of examination is why the machinery of the state where the deposition is taken is the natural reference point for the mechanics of the deposition. For a federal deposition taken in California, the state's certified and registered tiers are the credentials that exist, are checkable against a public list, and would be the obvious benchmark if the interpreter's qualification were ever examined.

There is also the cost dimension. A prevailing party who asks to recover a deposition interpreter's fee as a cost relies on 28 U.S.C. section 1920(6), "compensation of interpreters", which the Supreme Court has limited to oral interpretation, not written translation of documents (Taniguchi v. Kan Pacific Saipan, 2012). Rule 43(d) concerns interpreters the court itself appoints. Neither provision sets a credential condition, but an interpreter whose qualifications are documented leaves less to dispute.

Practical guidance

• Do not cite Rule 28 for anything to do with interpreters.
• Do not describe an interpreter as federally certified in a language other than Spanish, Navajo or Haitian Creole, and check any Navajo or Haitian Creole claim against the federal roster, since those programs are no longer offered.
• Do not cite 28 U.S.C. 1827 as a general requirement for private federal civil depositions.
• Do apply the standard of the state where the deposition is taken, and say so on the record.
• Do ask for the credential and number in advance, exactly as you would in state court.

One further situation worth anticipating. In multi-district and multi-state litigation, depositions in the same matter are frequently taken in several states, and the interpreter credential landscape differs in each. A witness deposed in California, Texas and New York may be interpreted by three people holding three different state credentials, because a credential from one state does not automatically carry over to another.

Where that is foreseeable, agreeing on a single standard across the matter at the outset is worth the small effort it takes. It produces consistent terminology across transcripts, which matters when passages are compared later, and it avoids an argument in which one deposition in the series is attacked on a basis that does not apply to the others.

Sources

Federal Rules of Civil Procedure 28, 30 and 43, Federal Rule of Evidence 604, and 28 U.S.C. sections 1827 and 1920, via the Legal Information Institute; federal court interpreter categories published by the Administrative Office of the U.S. Courts; California Government Code sections 68560.5 and 68561. Verified against the primary sources on November 5, 2026.

AMS supplies interpreters for federal and state proceedings across the United States. See our legal interpreting service or request a quote.