In every U.S. courtroom, a non-English-speaking witness has the right to a qualified interpreter. But "qualified" is not the same thing as "fluent in two languages." Court interpretation is a credentialed profession with formal certification examinations, jurisdiction-specific rosters, and meaningful consequences when an unqualified interpreter is used.
The three tiers in plain English
Most U.S. jurisdictions recognize three working tiers of court interpreter:
- Certified: passed a state or federal court certification examination in a specific language pair. The exam tests simultaneous, consecutive, and sight-translation skills under timed conditions. California maintains its own certification program; the federal courts maintain a separate certification for Spanish, Haitian Creole, and Navajo.
- Registered: in languages where certification examinations do not exist, qualified interpreters can be added to a state-maintained registry after meeting documented training and experience requirements. Registered interpreters are competent professionals; they simply work in languages too rare for a full certification exam to exist.
- Provisionally qualified: used in rare cases when neither certified nor registered interpreters are available. The court documents the qualification on the record.
Why the tier matters
Hiring a bilingual person who is not certified or registered exposes a proceeding to two distinct risks. First, the interpretation may be wrong on the record. A small mistranslation in a deposition can flip the meaning of testimony in ways that surface during cross-examination or appeal. Second, opposing counsel can object to an uncertified interpreter, and depending on the jurisdiction the court may decline to proceed.
What to ask when scheduling
- What is the interpreter's certification level for this language pair?
- In what jurisdiction are they certified or registered?
- How many years of court interpreting experience do they have?
- Do they have subject-matter experience in this practice area?
A reputable language services provider will answer all four questions before you book. AMS supplies certified and registered interpreters for state, federal, and administrative proceedings and matches each assignment to subject-matter experience.