How Many Times Can You Take the CNA Exam? Retake Rules & Timelines

Failing part of the nurse aide competency exam feels final in the moment. It usually isn’t. Almost every state builds retakes into the process, most candidates who retest only have to repeat the one section they missed, and the turnaround is often measured in days rather than months. What does matter is the clock: your attempts are limited, and they sit inside a window that starts when you finish your training program. This guide explains how the attempt limit works, how the two-year window works, what happens if you run out of tries, and exactly what to change before you sit down again.

The short answer — and why it depends on your state

CNA certification is regulated at the state level, inside a framework set by federal nursing home rules. That means there is no single national number, but the pattern is remarkably consistent:

• Most states allow three attempts at the competency evaluation after you complete a state-approved training program.
• Those attempts must usually be used within about 24 months of finishing your training.
• Each part is counted separately in many states, so failing the skills test does not burn an attempt on the written test.

Because the details genuinely vary — number of attempts, the length of the window, the waiting period between tries, and the retake fee — the single most useful thing you can do is confirm the rules for your own state before you schedule anything. Two places to check:

1. Your state’s nurse aide registry or Department of Health page for nurse aide certification.
2. The candidate handbook from the company that administers your state’s exam. States contract this out — Credentia, Prometric, Pearson VUE and Headmaster are common vendors — and the handbook spells out attempt limits, retest fees, and scheduling rules in plain language.

Your training program’s coordinator can point you to both, and is often the fastest source of a straight answer.

Two parts, two scores, one usually retaken

The nurse aide competency evaluation has two independent components:

• The written (or oral) knowledge test — multiple-choice questions covering resident care, safety, infection control, communication, residents’ rights, and the role of the nurse aide. Many states offer an oral version for candidates who would do better listening than reading; you generally have to request it when you register.
• The skills evaluation — you perform a small set of randomly assigned hands-on skills, almost always including handwashing, while an evaluator scores you against required steps.

You must pass both to be listed on the registry, but they are scored separately. In most states, if you pass one and fail the other, you only reschedule and pay for the part you failed. Your passing score on the other part stays valid, though it is usually only good for as long as your overall testing window remains open.

This matters for how you prepare. A candidate who failed skills by missing a single critical step does not need to re-read the whole textbook — they need a checklist and a practice partner. A candidate who failed the written test needs question volume and rationales, not more skills rehearsal.

The attempt limit and the 24-month clock

Two separate limits run at the same time, and you have to satisfy both.

The attempt limit. Three attempts is the common standard. Some states allow more, and some tie additional attempts to extra remediation. Attempts are counted from the completion of your training program, not from the day you first register.

The time window. Federal nursing home requirements have long framed nurse aide competency around a 24-month horizon, and states generally reflect that: your attempts have to be completed within roughly two years of finishing training. If the window closes before you pass, the attempts you had left do not carry over.

A few related timing rules to check in your handbook:

• Waiting period between attempts. Often short — a matter of days — but some states or test sites require a set interval or proof of remediation first.
• Retest fee. Usually less than the full exam fee, because you are paying for one part. Budget for it before you fail, not after.
• Registration validity. Some states require you to re-apply, not just rebook, if too much time passes between attempts.

One more clock worth knowing, because it is easy to confuse with the retake rules: once you are certified, most states require that you work as a paid nurse aide at some point within a 24-month period to keep your certification active. Lapse on that and you may have to test again — a different rule entirely from the one governing your first pass.

What happens if you use up all your attempts

Running out of attempts, or letting the window close, does not end your CNA path. It resets it. In most states the requirement is to repeat a state-approved nurse aide training program, which restarts both the attempt count and the two-year clock.

That is a real cost in time and tuition, which is exactly why the third attempt deserves more preparation than the first two. Practical steps if you are approaching your limit:

• Request your score report. Most vendors break results down by content area for the written test, and by specific step for the skills test. That report tells you what to fix; guessing does not.
• Ask your training program about remediation. Many programs will let a former student return for skills lab time, sometimes free of charge.
• Do not rebook immediately. The fastest available date is rarely the right one. Book far enough out that you can complete a real study block first.
• Check whether a nearby state’s rules differ. Reciprocity and endorsement rules vary, and this is a question for your state registry rather than an internet forum.

How to schedule a retake, step by step

1. Read your result notice carefully. It will state which part you failed, your remaining attempts, and the deadline of your testing window.
2. Confirm the retest fee and payment method in the candidate handbook for your state.
3. Pick a target date 10–21 days out if your state allows it — long enough to fix what went wrong, short enough that the material stays fresh.
4. Rebook through the same vendor portal you used originally, selecting the failed portion only if that option is offered.
5. Re-verify the test site details. Retakes are sometimes scheduled at a different location than your original attempt.
6. Bring the same documentation — valid photo ID matching your registration name, plus anything your notice specifies. An ID mismatch will end the day before it starts.

What to actually change before you retest

Retaking the same exam with the same preparation tends to produce the same result. Change the method, not just the effort.

If you failed the skills test:

• Work from a written step list for every skill, and say the steps out loud as you perform them. Evaluators score discrete actions, not general competence.
• Drill the universal steps that appear in nearly every skill: knock and introduce yourself, wash hands, provide privacy, explain the procedure, check body alignment, lower the bed, and place the call light within reach before you leave.
• Treat handwashing and any critical-step items as pass/fail. Missing one can end the attempt regardless of how well the rest went.
• Practice with a partner who holds the checklist and marks you honestly. Practicing alone hides the steps you skip automatically.
• Rehearse at exam pace with a timer so speed does not surprise you.

If you failed the written test:

• Do timed practice questions daily rather than re-reading notes. Recall under time pressure is the skill being measured.
• Read the rationale on every question, including the ones you got right — that is where a lucky guess turns into knowledge.
• Target your weak content areas from the score report instead of studying evenly across everything.
• Watch for the familiar traps: answers justified by staffing or convenience, anything outside the nurse aide’s scope of practice, and options that take a choice away from the resident. Safety, then reporting to the nurse, is usually the direction the correct answer points.
• Slow down on the wording. Words like first, best, except, and most appropriate change which answer is right.

A two-week retake plan

If you have roughly two weeks between attempts, this structure covers both parts without overwhelming anyone working a full-time job:

1. Days 1–2: Read your score report. Write down exactly what you missed and pick your three weakest areas.
2. Days 3–7: Thirty minutes of practice questions each day on those weak areas, reading every rationale. If skills were the problem, run two skills per day out loud from the checklist.
3. Days 8–11: Mixed practice — full-length question sets rather than single topics, and full skill sequences start to finish rather than isolated steps.
4. Days 12–13: One timed run of everything, then review only what you missed.
5. Day 14: Light review, confirm your ID and test site, and sleep.

The candidates who pass on a second attempt are rarely the ones who studied twice as long. They are the ones who found out precisely what went wrong and fixed that. Start with a full set of practice questions, mark every item you are not certain about, and let the results choose your study plan for you.