Medical Interpreter (CoreCHI) Exam 2026: Why Passing Is Only Step One

If you pass the CoreCHI medical interpreter exam after December 31, 2026, passing will not make you certified. On January 1, 2027, CCHI stops awarding the knowledge-only CoreCHI credential, and the exam becomes step one of two. Here is the whole path, and how to pass the first step.

CoreCHI is run by CCHI, the Certification Commission for Healthcare Interpreters. Interpreters of every language take the same exam, and it is written in English, because it tests the profession, not your language pair.

The exam is 100 multiple-choice questions in two hours, at a Prometric test center or live-proctored online. 15 of them are unscored pretest items, so 85 decide your result. There are no breaks and no scratch paper, but you can flag questions and come back to them.

Your raw score is converted to a scale from 300 to 600, and 450 passes. Test forms are equated, so the number of correct answers behind that 450 can shift slightly from form to form. Do not try to turn it into a percentage. And there is no pass or fail by section. Only the total counts.

The current outline, based on CCHI's 2022 job task analysis, has five domains, and the top three are almost tied. Healthcare terminology is 25%, managing the interpreting encounter 24%, and professional ethics 23%. Together that is 72%. Cultural responsiveness and the U.S. health system make up the rest.

Most questions are job scenarios with four options, and CCHI defines the best answer as the one a panel of practicing certified interpreters would agree is most appropriate. So expect two options that both sound helpful. Your job is to find the one the profession would actually choose.

To apply, you need four things. You must be at least eighteen. You need a high school diploma, a GED, or the equivalent from another country. You need 40 hours of training specific to healthcare interpreting. And you need proficiency in English and in your working language.

Watch the training rule. Interpreting experience does not count toward the 40 hours, and neither does self-study. Years as a bilingual employee will not replace them. Instructor-led courses and documented on-the-job training from an employer do count, including online self-paced modules, and there is no limit on how long ago you took them. No work experience is required at all.

Step two depends on your language. Spanish, Arabic and Mandarin interpreters take the bilingual CHI performance exam within 12 months of passing CoreCHI. Everyone else takes the English-to-English exam, called ETOE, to earn CoreCHI-Performance. From 2027, ETOE is also due within 12 months. Both oral exams are given only at test centers in the U.S. and Canada.

And if you earn the standalone CoreCHI credential in 2026, it has a clock on it. You will have two years from the award date to pass ETOE. Miss that, and the credential expires and cannot be renewed.

Let us try two questions from the Quibank bank. Question one. Twenty minutes into an oncology visit, the interpreter realizes she said twice a day when the physician said twice a week. What should she do? A, quietly correct it with the patient afterward. B, announce the error right away to both parties and give the correct rendering. C, wait to see whether the physician repeats the schedule. D, report it to her supervisor after the visit.

The answer is B. Interpreters correct their own errors as soon as they notice them, openly, to everyone in the room. A private fix leaves the physician believing the patient heard the right schedule, and waiting on a medication error risks real harm.

Question two. A nephrologist says, we need to assess your glomerular filtration rate and consider arteriovenous fistula placement. You know the patient will not understand those terms. What do you do? A, swap in a simple explanation. B, interpret as spoken, then ask the physician to explain the terms. C, interpret, and add a short definition of each. D, interpret, and say nothing.

The answer is B. Accuracy includes the speaker's register, so you keep the technical terms, and explaining belongs to the provider. You stay faithful, then openly ask the physician to put it in plainer words. Notice that A and C feel kinder. On this exam, the most helpful-sounding option is often the one that takes over someone else's role.

How to prepare: first, split your hours evenly across terminology, the encounter and ethics, because they sit within two points of each other. Second, learn terminology from word parts, prefixes and suffixes, so you can decode a term you have never seen. Third, for every scenario you miss, name the principle the wrong option broke: accuracy, transparency, impartiality, or role boundaries. Fourth, practice in English under a two hour clock, whatever language you work in.

To recap. 100 questions, 85 scored, two hours, in English. A scaled 450 passes. Terminology, the encounter and ethics carry almost three quarters of the exam. Forty hours of training, and experience does not count. And from 2027, CoreCHI is step one of two.

Free medical interpreter practice, in English, Chinese and Spanish, is at quibank.com/en/medical-interpreter.