# Interpreter Certification: Medical and Court Paths

> CMI, CHI, CoreCHI, CCHI - the alphabet soup of interpreter certifications explained. Which one to get, what it costs, and what it's worth.

Author: Mirkamol
Published: April 11, 2026
Updated: September 8, 2026
Categories: Guides
Canonical page: https://useinterpreter.com/blog/interpreter-certification-guide/
A training certificate and a professional certification are not the same thing. Finishing a course documents training. Earning a credential usually also requires eligibility review and an independent exam.

If an agency asks for "certification," ask which credential it accepts for your language and assignment before paying for a course.

This guide covers U.S. pathways. Requirements, fees, and deadlines below were checked on September 8, 2026. The credentialing body and hiring organization make the final decisions.

## Medical Interpreter Certification: CCHI vs NBCMI

Both organizations offer national healthcare-interpreter credentials, but their pathways differ.

### CCHI

[CCHI's eligibility requirements](https://cchicertification.org/certifications/eligibility/) include age, education, language proficiency, and at least 40 hours of healthcare-interpreter training. Completing those hours is an application requirement, not proof that you are ready for every medical assignment.

CCHI's bilingual [CHI performance exam](https://cchicertification.org/certifications/preparing/chi-description/) is available in Spanish, Arabic, and Mandarin. Candidates first pass the CoreCHI knowledge exam.

CoreCHI-Performance (CoreCHI-P) adds an English-to-English interpreting performance assessment, the ETOE, plus language-proficiency requirements. It is not a bilingual performance exam in every language. Candidates in CHI languages must follow CCHI's language-specific pathway; CoreCHI-P is not a way to skip CHI testing.

### NBCMI

[NBCMI offers Hub-CMI and CMI](https://www.certifiedmedicalinterpreters.org/overview). Hub-CMI is available regardless of target language. CMI adds an oral exam and is offered in six languages: Spanish, Cantonese, Mandarin, Russian, Korean, and Vietnamese.

For those six languages, Hub-CMI expires after two years without renewal if you do not complete the CMI path. For other languages, Hub-CMI has a renewable four-year cycle.

Do not describe Hub-CMI as a bilingual oral certification. Use the credential you actually hold on applications and profiles.

### Compare the whole pathway

| Question | CCHI | NBCMI |
|---|---|---|
| Which exam fits my language? | CHI in three languages; CoreCHI-P pathway subject to eligibility rules | CMI oral exam in six languages; Hub-CMI otherwise |
| What should the employer confirm? | Accepted credential and any language-specific requirements | Whether Hub-CMI or CMI meets the assignment requirement |
| What should I budget for? | Application, knowledge exam, performance exam, training, travel, possible retakes | Registration, written exam, oral exam where offered, training, travel, possible retakes |

The credential's name matters more than an agency's shorthand for "certified."

## The CoreCHI Transition in 2026

CCHI is ending the **standalone CoreCHI credential**, not the CoreCHI knowledge exam.

Its [transition policy](https://cchicertification.org/sunsetting-corechi/) says no new standalone CoreCHI credentials will be awarded from January 1, 2027. CHI and CoreCHI-P remain the two primary credentials.

[CCHI's transition policy](https://cchicertification.org/sunsetting-corechi/) gives 2025–2026 award or renewal holders two years from their award date to pass ETOE.

Earlier credentials follow a separate schedule. The [transition deadline](https://cchicertification.org/sunsetting-corechi/) is the expiration date or December 31, 2028, whichever comes first.

Check your own award date and expiration in the official policy. Do not rush to buy a written-only credential on the assumption that it will remain renewable indefinitely.

## What Certification Costs

The published standard [CCHI fee schedule](https://cchicertification.org/certifications/fees/) lists $231 for the initial application and CoreCHI exam, then $302 for the relevant performance exam. That is $533 before training, travel, retakes, or any applicable discount.

[NBCMI's fee schedule](https://www.certifiedmedicalinterpreters.org/fee-update) lists $40 registration, $190 written, and $300 oral: $530 for the initial CMI exam path before other expenses. Hub-CMI candidates do not take an unavailable oral exam.

These are listed fees, not personalized quotes. Promotions may have eligibility conditions; verify the total at registration. A discounted performance exam is not the total cost of certification.

## Court and Legal Interpreting

A healthcare credential does not certify you for court work.

The [U.S. Courts interpreter program](https://www.uscourts.gov/court-programs/federal-court-interpreters) explains federal qualification categories and testing. State courts have their own certification, registration, testing, and continuing-education rules.

Start with the court system where you intend to work. Ask about your language, exam schedule, roster requirements, and whether remote assignments have additional conditions. Our [court certification guide](/blog/court-interpreter-certification/) can help organize those questions.

[ATA certification](https://www.atanet.org/certification/) is for written translation. It should not be represented as an interpreter credential.

## Keeping a Credential Current

Certification comes with renewal work.

[CCHI's renewal guidance](https://cchicertification.org/renew-certification/renewal-process/) generally requires 32 continuing-education hours and 40 healthcare-interpreting work hours in the four-year cycle. Performance-based training requirements apply, and a new interactive-ethics requirement starts in 2027. CoreCHI transition rules are separate.

[NBCMI's renewal page](https://www.certifiedmedicalinterpreters.org/get-recertified) describes the five-year CMI cycle and approved continuing education. Check the separate Hub-CMI rules if that is your credential.

Save completion records as you go. Confirm that a course is accepted for your credential before paying; general self-study does not automatically earn renewal credit.

## Choose Based on the Work You Want

Ask prospective clients which credentials they recognize. Then compare eligibility, language coverage, testing access, renewal obligations, and total cost.

Certification may open particular assignments. It does not guarantee higher rates, steady call volume, or a job. Get the actual rate and credential requirements in writing before treating training as an income investment.

For the next step, see [how to specialize as an interpreter](/blog/how-to-specialize-as-interpreter/) and [becoming a medical interpreter](/blog/how-to-become-medical-interpreter/).