You can become a CNA without a high school diploma in many states, but not all of them. Federal law sets no education requirement for nursing assistant trainees, so whether a diploma is mandatory depends entirely on the state where you plan to train and work. Some states require a diploma or equivalent credential, others accept an eighth- or tenth-grade education, and a third group skips the question and asks you to pass a basic reading and math test instead.
What Federal Law Says About Education
The Omnibus Budget Reconciliation Act of 1987 built the national framework for nursing assistant training. Its implementing regulation requires every state-approved program to run at least 75 clock hours, with at least 16 hours of supervised hands-on practice under a registered nurse or licensed practical nurse, plus 16 hours of core content, covering communication, infection control, safety, resident independence, and residents’ rights, before any trainee touches a resident.1eCFR. 42 CFR 483.152 – Requirements for Approval of a Nurse Aide Training and Competency Evaluation Program
Nothing in the federal regulation mentions a diploma, a GED, or any minimum grade level. The rules it sets concern instructor qualifications, curriculum, and hours. That silence is what leaves room for state variation.
How State Education Rules Break Down
State boards of nursing and health departments decide the academic threshold for entering a training program and sitting for the competency exam. The landscape falls into three rough groups:
- States that require a high school diploma or equivalent before you can enroll or test.
- States that accept a lower education level, often completion of eighth or tenth grade.
- States that drop the education question and require a reading and math assessment instead.
States that demand a diploma usually cite the documentation load of modern healthcare: electronic records, insurance forms, and care plans that call for solid reading and writing. States with a lower bar are often responding to chronic staffing shortages in long-term care. Because the rules shift and differ so much, call your state’s board of nursing or health department before you commit time or money. That one phone call is the most useful step in this whole process.
Programs Can Set a Higher Bar Than the State
Even in a state that doesn’t require a diploma, the training program you apply to might. Community colleges and private vocational schools track pass rates on the competency exam, so they screen applicants for reading and math readiness regardless of what the state mandates.
The most common screening tool is the Test of Adult Basic Education, or TABE. Programs that admit applicants without a diploma typically want a TABE reading score around tenth-grade level, enough to handle medical terminology, care instructions, and charting. The test costs roughly $20 to $50 depending on where you sit for it, and results come back quickly.
Non-native English speakers have another route. Some programs run CNA tracks designed for English language learners, combining language instruction with clinical training and requiring intermediate English rather than a diploma. For immigrants entering healthcare, these can be a strong fit.
Beyond academics, expect to produce:
- A physical exam showing you’re free of communicable diseases, usually with a negative tuberculosis test.
- A criminal background check through state police, sometimes with an FBI check if you haven’t lived in the state for two consecutive years.
- Current immunizations, including flu, with specifics varying by program.
Employer-Paid Training Can Open the Door
Federal law bars nursing facilities from charging you for training if you already work there or have a job offer before you start the program. The regulation covers textbooks and course materials too. And if you pay for training yourself and then get hired by a facility within 12 months of finishing, the state must arrange prorated reimbursement during your employment.1eCFR. 42 CFR 483.152 – Requirements for Approval of a Nurse Aide Training and Competency Evaluation Program The same no-charge rule applies to the competency exam itself for aides employed by or holding an offer from a facility.2eCFR. 42 CFR 483.154 – Nurse Aide Competency Evaluation
In practice, many nursing homes run their own training programs and hire graduates directly, paying everything from day one.3CMS. Certified Nursing Assistant (CNA) If you don’t have a diploma, this route matters twice over. It removes the cost barrier, and employer-run programs sometimes apply more flexible admission criteria than community colleges do. Call local nursing homes and ask what their training program requires.
Earning a GED or HiSET Instead
If your state does require a diploma, a high school equivalency credential will get you through the same door. Two major exams serve the purpose, and both are accepted as diploma equivalents for CNA certification in every state that requires one.
The GED covers four subjects: language arts, math, science, and social studies. Fees run roughly $30 to $40 per subject in most states, so the full battery falls somewhere between $120 and $160 if you pass each on the first try.4GED Testing Service. How Much Does Getting a GED Cost? Fees, Courses, and Materials The HiSET has five subtests at $18 each as of April 2026, totaling $90, with possible added test center fees. Both result in the same state-issued high school equivalency certificate.
Free preparation classes are available at adult education centers in most communities, often funded by federal workforce development grants. Starting there can save hundreds of dollars in private prep costs.
Other Eligibility Hurdles to Check
Age
Federal labor law allows minors as young as 14 to work in healthcare, but nursing assistant work carries restrictions for anyone under 18. Workers aged 16 and 17 may serve as nursing assistants, though federal hazardous work rules limit their ability to operate power-driven patient lifts independently. The Department of Labor has carved out an exception allowing properly trained 16- and 17-year-old aides to assist trained adults with certain lifts under specific conditions.5U.S. Department of Labor. Fact Sheet #52 – The Employment of Youth in the Health Care Industry Most states set their own minimum age for certification, commonly 16 or 18. Check yours.
Background Checks
Every state requires a criminal background check before placing you on its nurse aide registry. Specifics vary, but patterns are consistent. Convictions for abuse, neglect, or exploitation of vulnerable adults almost universally bar certification. Serious felonies involving violence, sexual offenses, or theft from patients usually disqualify as well. Some states set time limits on lesser offenses, meaning older misdemeanors may not block you.
One federal-level disqualification applies everywhere. If your name appears on the Office of Inspector General’s List of Excluded Individuals, no healthcare facility receiving Medicare or Medicaid reimbursement can employ you in any capacity, including administrative and support roles where your salary would be covered even indirectly by federal program funds. Because nearly all nursing homes accept Medicare or Medicaid, an OIG exclusion effectively shuts you out of the field. Employers face penalties of up to $10,000 for each item or service furnished by an excluded individual, so they check.6Office of Inspector General, U.S. Department of Health and Human Services. The Effect of Exclusion From Participation in Federal Health Care Programs
An OIG exclusion does not expire on its own. You must apply for and receive reinstatement; it never happens automatically.6Office of Inspector General, U.S. Department of Health and Human Services. The Effect of Exclusion From Participation in Federal Health Care Programs If you have any criminal history, check the OIG database and your state’s disqualifying offense list before you enroll.
Work Authorization
Most states require a Social Security number for the application. Lawful work authorization is needed for employment, though the certification application itself focuses on training completion and exam passage rather than immigration status.
The Competency Exam Still Has to Be Passed
A diploma gets you into training; passing the state competency evaluation gets you on the registry. The exam has two parts: a knowledge test and a hands-on clinical skills demonstration.2eCFR. 42 CFR 483.154 – Nurse Aide Competency Evaluation
The knowledge portion is multiple choice. Federal law requires that every candidate have the option to take it orally instead of in writing, which matters for candidates with reading difficulties.2eCFR. 42 CFR 483.154 – Nurse Aide Competency Evaluation If writing was the barrier that kept you from finishing high school, that oral option is worth knowing about.
Federal law guarantees at least three attempts.2eCFR. 42 CFR 483.154 – Nurse Aide Competency Evaluation States can allow more, but none can offer fewer. Fail one section and pass the other, and you typically only retake the failed portion. Exhaust your attempts, and you’ll need to complete a new state-approved training program before testing again.7Credentia. How Many Exam Attempts Can I Take?
One Note if You Plan to Move Later
Most states let you transfer an active CNA certification through a reciprocity process without retaking the competency exam. The state education rules can create friction here. If you certify in a state that didn’t require a diploma and then move to one that does, the transfer may hit complications. Checking the receiving state’s reciprocity rules before relocating is worth doing.