Certified Nursing Assistant: Training, Exam, and Certification

To become a certified nursing assistant, CNA certification requirements set by federal law come down to five things: meet basic eligibility, finish a state-approved training program of at least 75 hours, pass a written or oral knowledge test, pass a hands-on skills evaluation, and get your name onto your state’s nurse aide registry. States can add to that floor, and many do. What follows walks through each step and the obligations that keep your credential valid once you have it.

Who Can Enroll

Before you can start training, you need to clear a few gates. Most states require applicants to be at least 16 or 18 years old and to hold a high school diploma or GED. A criminal background check with fingerprinting is standard. Felony convictions involving violence, theft, or sexual offenses frequently disqualify applicants, and anyone listed on the Office of Inspector General’s List of Excluded Individuals or a sex offender registry will generally be barred from certification.

Health clearances come next. You’ll need proof of current immunizations and either a negative tuberculosis skin test or a clear chest X-ray before you can begin clinical training with real patients. Some programs also require drug screening and confirmation that you can safely handle the physical demands of the job, such as lifting 35 to 50 pounds. Skipping any of these will stall your application.

Training Hours and Curriculum

Every approved CNA program must provide at least 75 hours of instruction, including a minimum of 16 hours of supervised practical training where you perform skills on a person under the direct supervision of a registered nurse or licensed practical nurse.1eCFR. 42 CFR 483.152 – Requirements for Approval of a Nurse Aide Training and Competency Evaluation Program That 75 hours is the federal minimum. Many states set the threshold higher, sometimes 120 or 150 hours, with the additional time going to expanded clinical rotations.

Federal rules also require that you complete at least 16 hours of classroom instruction in five areas before you ever touch a resident:

  • Communication and interpersonal skills
  • Infection control
  • Safety and emergency procedures, including responding to choking
  • Promoting residents’ independence
  • Residents’ rights

The rest of the curriculum covers basic nursing skills like taking vital signs and recognizing changes in a resident’s condition, personal care skills such as bathing, grooming, dressing, and transfers, care of cognitively impaired residents including those with Alzheimer’s disease, mental health and social service needs, and basic restorative services like range-of-motion exercises and use of assistive devices.1eCFR. 42 CFR 483.152 – Requirements for Approval of a Nurse Aide Training and Competency Evaluation Program Only programs formally approved by your state’s regulatory body count toward credentialing, so confirm your program’s status before you pay tuition.

Who Pays for Training

This right is easy to miss. If you already work at a nursing facility or have received a job offer from one on the date your training begins, that facility cannot charge you anything for the program, including tuition, textbooks, and other course materials.2eCFR. 42 CFR Part 483 Subpart D – Requirements That Must Be Met by States and State Agencies The same applies to the competency evaluation fees.

Even if you paid for training out of pocket without a job lined up, protection still exists. If a nursing facility hires you within 12 months of finishing your training and competency evaluation, the state must arrange for reimbursement of your training costs on a pro rata basis for as long as you’re employed there as a nurse aide.2eCFR. 42 CFR Part 483 Subpart D – Requirements That Must Be Met by States and State Agencies If your timeline fits and no reimbursement has come through, raise it with your state’s nurse aide registry or survey agency.

The Two-Part Competency Exam

After training, you take a two-part competency evaluation. Most states use the National Nurse Aide Assessment Program to administer both portions.

Knowledge Test

The first component is a written or oral knowledge test. Federal regulations require that candidates be allowed to choose between the two formats.3eCFR. 42 CFR 483.154 – Nurse Aide Competency Evaluation Questions cover safety, communication, infection control, residents’ rights, and the other curriculum areas from your training.

Skills Demonstration

The second component is a hands-on performance test. You’ll be asked to demonstrate five randomly selected nursing tasks drawn from a pool covering the personal care skills in the federal curriculum.3eCFR. 42 CFR 483.154 – Nurse Aide Competency Evaluation Tasks might include handwashing, measuring blood pressure, or providing catheter care. An evaluator grades you against a checklist of required steps for each skill. Missing a critical step can fail you on that entire skill.

You have to pass both parts to earn certification. Most states let you retake a failed portion without repeating the one you passed, though retake policies and fees vary.

Applying to Test and Getting Listed

Once training is done, you submit an application to schedule the exam. Depending on the state, that means applying through the Board of Nursing, the state health department, or a contracted testing vendor. You’ll typically need a valid Social Security number, government-issued photo ID, and an official certificate of completion from your program. Some states also require a signature from your program coordinator and a clearance letter from your background check.

If you need testing accommodations under the Americans with Disabilities Act, indicate that on the application and submit supporting documentation before scheduling. After processing, you’ll get an authorization-to-test notice with instructions for booking at an approved site. Exam fees vary by state but generally fall in the $100 to $150 range for the combined written and skills evaluation. Retaking only one portion costs less. If you had a nursing facility job or offer when your training started, the facility is legally responsible for those fees.

Results are usually available within a few business days through a secure online portal. Once you pass both parts, the testing vendor sends your results to the state nurse aide registry. After processing, your name appears as active and eligible for hire. Some states mail a physical certificate; others simply update the registry and let you print a verification letter.

Keeping Your Certification Active

Getting listed is the beginning of an ongoing obligation. Federal regulations require that anyone who performs no nursing or nursing-related services for 24 consecutive months be removed from the registry.4eCFR. 42 CFR 483.156 – Registry of Nurse Aides In practice, you need to log some compensated nursing hours within every two-year window, and your employer must be able to verify that work to the registry. If the 24 months lapse, most states require you to retake the competency evaluation, and some require full retraining, before you can be relisted.

Federal law also requires nursing facilities to provide each nurse aide with at least 12 hours of in-service education per year on topics relevant to the care they deliver.5eCFR. 42 CFR 483.35 – Nursing Services Arranging it is your employer’s job, but making sure it happens and that attendance records exist is worth watching yourself. Some states require more than 12 hours annually.

You also have to notify the registry of any change to your legal name or mailing address. Missing any of these administrative obligations can quietly cause your credential to lapse, and you cannot legally work as a CNA until it’s restored.

Abuse Findings and Your Due Process Rights

The most serious threat to a CNA credential is a substantiated finding of abuse, neglect, or misappropriation of resident property. Only the state survey and certification agency has authority to place such a finding on the registry, and the process involves a formal investigation.4eCFR. 42 CFR 483.156 – Registry of Nurse Aides The registry entry must include documentation of the investigation, the nature of the allegation, and the evidence behind the finding.6Centers for Medicare & Medicaid Services. Survey and Certification Letter 05-05 – Nurse Aide Registry and Findings of Abuse, Neglect, or Misappropriation of Property

Federal regulations give you the right to request a hearing to contest the finding and the right to submit a written statement disputing the allegation that stays permanently attached to your registry record. Any time someone queries the registry about you and a finding comes up, your dispute statement must be included in the response.4eCFR. 42 CFR 483.156 – Registry of Nurse Aides You also have the right to correct factual errors in your entry.

A substantiated finding remains on the registry permanently. It can only be removed if the finding was made in error, you were found not guilty in a court of law, or the state is notified of your death.4eCFR. 42 CFR 483.156 – Registry of Nurse Aides There is no appeals process that removes a finding based on time served or rehabilitation, which is why the hearing and dispute rights matter so much when the allegation is first made.

Transferring Certification to Another State

If you move, you don’t necessarily have to retrain and retest. Most states offer a reciprocity process that lets you transfer active certification to their registry. To qualify, you must be in good standing on your current state’s registry with no lapse in status and no substantiated findings of abuse or neglect.7Credentia Help Center. How to Apply for Reciprocity

The mechanics depend on the destination state. Some states use a Credentia platform, where you create a state-specific account, submit a reciprocity request, attach your current certification details, and pay any applicable fee. Others handle reciprocity through their Board of Nursing or health department, and you’ll need to contact that agency directly. Some states also require additional training hours or their own background check before adding you to the registry. Start the transfer well before you need to start working in the new state.

What Your Credential Lets You Do

The federal curriculum defines your scope of practice. Certification covers personal care skills like bathing, grooming, dressing, and toileting; basic nursing tasks like taking vital signs, measuring height and weight, and repositioning residents; restorative care including range-of-motion exercises; and recognizing and reporting changes in a resident’s condition to a supervising nurse.1eCFR. 42 CFR 483.152 – Requirements for Approval of a Nurse Aide Training and Competency Evaluation Program

What you cannot do matters just as much. CNAs do not administer medications (unless separately credentialed as a medication aide in states that permit it), perform clinical assessments, give injections, or make care decisions independently. Every task delegated to you must come from and be supervised by a licensed nurse. States write their own scope-of-practice rules, and some allow facilities to provide supplemental training that broadens what you can do, but working outside your scope is one of the fastest ways to lose your credential.