CNA is the fastest legitimate entry into healthcare — and the only credential on this site that's required in all 50 states, because federal law ties nursing-home funding to certified staffing. The path is short, the rules are state-run on a federal floor, and the registry is what actually makes you a CNA. Here's the full map.
The four requirements (every state, same shape)
1. State-approved training program. Federal law (the Omnibus Budget Reconciliation Act of 1987) sets a floor of 75 training hours for programs in Medicare/Medicaid-participating nursing facilities — and most states require more (commonly 80–120+ hours), split between classroom/lab and supervised clinical hours in a real facility. Programs run through community colleges, trade schools, hospitals, nursing homes, and the American Red Cross.
2. The state competency exam. Two parts in most states: a written (or oral) knowledge test and a skills demonstration where you perform randomly selected care skills (hand hygiene, vital signs, transfers, and the like) before an evaluator. Both parts must pass. Failed sections can usually be retaken within a limited window.
3. Background check. States screen applicants against abuse registries and criminal history — disqualifying offenses are defined by each state and typically relate to patient abuse, neglect, or certain crimes against persons.
4. The state registry. Passing isn't the finish line: your name must be listed on your state's nurse aide registry — that listing is the certification, and it's what employers verify. Registries also track renewals (typically every two years, requiring proof of paid work hours in the period — commonly 8+ hours — or retesting).
Cost and timeline, honestly
| Item | Typical range |
|---|---|
| State-approved program | ~$500–$2,000 (free programs exist — see below) |
| Exam + registry fees | Modest, set by state/provider |
| Total time | 4–12 weeks for training, plus exam scheduling |
Free training is a real thing: nursing homes and hospitals frequently sponsor candidates' training in exchange for a work commitment (commonly 3–12 months), and workforce-development programs cover costs for qualifying applicants. If money is the constraint, apply to facilities directly before paying a school.
The state-by-state variation
The federal floor is 75 hours; states stack their own requirements on top — some require noticeably more hours and specific clinical content. Exam administration is typically through national providers (Prometric and Headmaster/Credentia are the two you'll most often see, depending on the state). Your state's nurse aide registry page (search your state + nurse aide registry, prefer the .gov result) publishes the approved programs, exam provider, and registry rules.
What the credential unlocks
CNA is the entry rung with paid, structured ladders above it: medication aide/tech add-ons (state-specific), LPN and RN bridge programs that credit CNA experience, and specialties (dialysis, rehab, home health). Many RNs started exactly here — the credential costs weeks and a few hundred dollars and keeps you employed in healthcare the whole way up.
General information, not career or legal advice. Hour minimums, exam providers, and registry rules are state-specific and change — verify with your state's nurse aide registry. Federal training requirements: CMS nurse aide training regulations.
Frequently asked questions
What are the basic requirements to become a CNA?
The universal pattern: complete a state-approved training program, pass the state competency exam (typically a written/knowledge portion plus a skills demonstration), pass a background check, and get listed on your state's CNA registry. States add their own hour minimums and eligibility rules on top of the federal floor.
How long does CNA training take?
Federal law sets a floor of 75 training hours for programs in nursing facilities that participate in Medicare/Medicaid, and many states require more (commonly 80–120+ hours). In practice most students complete training in about 4 to 12 weeks depending on full-time versus part-time scheduling.
How much does CNA certification cost?
Programs commonly run roughly $500–$2,000, with some nursing homes, hospitals and workforce programs offering free training in exchange for a work commitment. Exam and registry fees are typically separate and modest; exact figures vary by state and program — verify with your state's nurse aide registry.
Does CNA certification transfer between states?
Through a process called reciprocity: many states will list a CNA certified in another state on their registry without retesting, provided the training met requirements and your certification is active. Each destination state's registry handles it differently — apply to the new state's nurse aide registry directly.