The 40-Hour Medical Interpreter Training Requirement, Explained for Bilingual Healthcare Workers

Bilingual staff working in clinics and hospitals often find out about the CCHI and NBCMI training requirement the same way: someone mentions it in passing, or a job posting lists “national certification” as a preferred qualification. The requirement itself is specific. Both CCHI and NBCMI, the two bodies that issue national medical interpreter certification in the United States, require candidates to complete 40 hours of medical interpreter training before they can sit for an exam. Speaking two languages fluently does not satisfy that requirement. Neither does years of informal interpreting on the floor. The training has to happen, and it has to be documented.

That single fact drives a lot of confusion, mostly around what counts as valid training and how rigid the format needs to be. This article walks through what the requirement actually says, how a structured online course fits into it, and what MLT Academy’s 40-hour program covers for bilingual healthcare workers who want to move toward certification without quitting a job or relocating for a classroom seat.

What CCHI and NBCMI actually require

CCHI and NBCMI each certify medical interpreters nationally, and each requires 40 hours of medical interpreter training as a prerequisite for exam eligibility. Neither body trains interpreters directly. They set the requirement and verify that a candidate has met it, but the training itself comes from outside providers.

CCHI’s eligibility page defines training as “learning in an instructor-led environment, including online self-paced modules.” That settles a question a lot of candidates ask before enrolling anywhere: does the training have to be in person, or delivered on a fixed schedule, to count? It does not.

NBCMI takes a different administrative approach. It does not approve training courses itself; its prerequisites document states that no NBCMI staff is involved in approving them. What it requires is a certificate of completion from a medical interpreter training course of at least 40 hours, or three college credit hours of medical interpreting coursework. It points candidates to program registries kept by IMIA and CHIA and states that those registries are not a complete list and that many other programs are acceptable. That gives candidates flexibility in choosing a course, but it also puts more weight on picking a program that actually covers what a medical interpreter needs to know, since there is no approval stamp doing that vetting for you.

In both cases, the 40 hours of training is one requirement among several. Candidates still have to separately meet each body’s education and language-proficiency criteria, and they still have to pass the certification exam. A training course, however well built, covers the training component only. It is not a shortcut around the rest of the process.

Employers have their own reasons for caring about this. Federal language-access rules require hospitals and clinics to use qualified interpreters for patients with limited English proficiency, and documented training is one of the plainest ways an employer shows an interpreter meets that standard. We cover that side of the picture in what Section 1557 and Title VI require of healthcare providers.

Why self-paced is not the same as self-study

This distinction trips people up. CCHI’s definition of training includes online self-paced modules. The same page states that interpreting experience is not accepted as a substitute for training, and lists self-study, performing your job, and preparing for an assignment among activities it does not accept for continuing education credit. CCHI does not spell out where the line falls, so here is our reading of it: self-study is learning on your own, with no defined curriculum, sequencing, testing, or record of hours. The difference is structure, not schedule.

A self-paced course can still be a structured program: fixed sections, defined learning objectives, video instruction, practice questions, a final exam, and a certificate that documents exactly how many hours were completed. What makes it acceptable is that the program has a fixed sequence, an assessment, and a record of the hours completed.

That is the model MLT Academy’s course follows. It is self-paced in the sense that you set your own hours and complete it around a work schedule. It is not self-study, because the curriculum, sequencing, and assessment are fixed by the program, not assembled by the learner.

The training has to happen, and it has to be documented.

What the MLT Academy course covers

MLT Academy’s 40-Hour Medical Interpreter Training is built as a structured online program, completed at your own pace over a full year of access. The course is organized into 8 sections and delivers the material through 125 video lessons, totaling more than 15 hours of video instruction, backed by more than 250 pages of reference material.

Throughout the course, learners work through 650 practice questions before reaching a 100-question final exam, which requires an 85% passing threshold. If a learner does not pass on the first attempt, the course includes one free retake after a 14-day wait.

Because access runs a full year, and MLT treats it as a living course, any updates made to the content during that year are included at no extra cost. Bilingual healthcare workers juggling shifts do not have to finish in a set number of weeks. Someone working full time in a clinic might reasonably spread the 40 hours over a few months of evenings and days off; the course structure supports that pace as easily as a faster one.

On completion, learners receive a certificate documenting the 40 training hours, which is the specific documentation CCHI and NBCMI ask for when a candidate applies for exam eligibility. The certificate does not represent certification. It represents proof that the training requirement has been met, which is what the candidate then submits as part of their application to CCHI or NBCMI.

The course is built and maintained by MultiLingual Technologies, a language-services company with 20+ years in the field. Course content is reviewed and updated during your enrollment year rather than frozen at purchase.

The course instruction is in English, and you apply it to your own language pair, whether that is Spanish, Arabic, Mandarin, or another. The terminology, protocols, ethics, and skill-building content apply across languages, so there is no separate version per language.

MLT Academy’s course is $289 for one full year of access, billed once, with no auto-renewal. Content updates released during that year are included. For a bilingual healthcare worker paying out of pocket, that is the whole number: no subscription and no add-ons. The only possible extra is $89 per additional final-exam attempt if you use the free retake and still need another.

What happens after the 40 hours

CCHI and NBCMI both require candidates to meet their separate education and language-proficiency criteria and to pass their respective certification exams before earning national certification. The 40-hour certificate is the document that clears the training gate. What comes after it, the exam application, proficiency testing, and the exam itself, is a separate process handled directly with CCHI or NBCMI.

For bilingual healthcare workers who have been interpreting informally, the training hours are the first concrete step, and 40 hours takes planning around shifts. We compare the two certifying bodies in CCHI vs NBCMI: how to choose a medical interpreter certification.

A note on state rules

National certification through CCHI or NBCMI is the path this article covers, but a few states run their own credential with their own rules, and those rules change. Oregon’s health care interpreter registry requires completing a training program approved by the Oregon Health Authority, and the program length OHA references is 60 hours, so a 40-hour course on its own does not meet Oregon’s state requirement. Washington’s Department of Social and Health Services issues its own medical interpreter credential for work with its clients, and requires applicants to pass both an oral and a written test from one of three approved third-party entities, CCHI and NBCMI among them. If you plan to work in either state, check that state’s current requirements before choosing a program. State requirements checked October 8, 2026.

Frequently asked questions

Does completing a 40-hour course make me a certified medical interpreter?

No. The course meets the 40-hour training requirement, which is one prerequisite for CCHI and NBCMI certification. You still have to meet each body’s education and language-proficiency criteria and pass its exams. The certificate you receive documents your training hours; it is not a certification.

Does CCHI accept online, self-paced training?

Yes. CCHI’s eligibility page defines training as learning in an instructor-led environment, including online self-paced modules. The same page states that interpreting experience is not accepted as a substitute for training, and lists self-study among activities it does not accept for continuing education credit.

Does CCHI or NBCMI approve training courses?

Neither body approves beginner training programs. CCHI states that it does not approve or accredit prerequisite programs. NBCMI states that no NBCMI staff is involved in approving training courses and that the program registries it links to are not a complete list. The course is built to meet the 40-hour training requirement in both certification pathways, and the completion certificate documents those hours.

How long do I have to finish the course?

One full year from enrollment. The course is self-paced within that year, and content updates released during the year are included.

What happens if I do not pass the final exam?

The 100-question final exam requires 85% to pass. One free retake is included, after a 14-day waiting period. Additional attempts beyond that cost $89 each.

Is the course available in my language?

Instruction is in English, and you apply it to your own language pair, whether that is Spanish, Arabic, Mandarin, or another language. The course teaches the interpreting skills, ethics, and medical content that apply across languages.

Get started on the 40-hour requirement

MLT Academy’s course is built specifically to satisfy the 40-hour training requirement for CCHI and NBCMI certification pathways, at your own pace, for $289. You can review the full curriculum and enroll directly.

See the curriculum and enroll in MLT Academy’s 40-Hour Medical Interpreter Training