CNA Certification Exams
Prometric, Credentia, and Headmaster are the three major organizations that administer CNA exams in the United States.
Your specific exam provider depends entirely on your state's regulations. Passing these rigorous assessments—which cover both clinical skills and written theory—is the final step to earning your license and starting your career.
Headmaster (D&S Diversified)
Managed by D&S Diversified Technologies, the Headmaster exam is a primary assessment tool used in many states. It consists of two distinct parts: a Knowledge Test (written or oral) and a Skill Test where you must demonstrate competency in random clinical tasks. You must pass both sections to be certified.
Headmaster States
- Arizona
- Arkansas
- California
- Kentucky
- Massachusetts
- Michigan
- Minnesota
- Missouri
- Montana
- New Jersey
- North Dakota
- Ohio
- Oklahoma
- Oregon
- South Dakota
- Tennessee
- Utah
- Wisconsin
- Wyoming
Credentia
Credentia administers the National Nurse Aide Assessment Program (NNAAP). It is one of the most widely recognized exams in the country. Their testing process focuses heavily on ensuring candidates are "job-ready" by evaluating core competencies in real-time simulations and written theory.
Credentia States
- Alabama
- Alaska
- California
- Colorado
- DC
- Georgia
- Maryland
- Mississippi
- Nevada
- North Carolina
- Pennsylvania
- Rhode Island
- South Carolina
- Virginia
- Washington
Prometric
Prometric exams are designated by specific state health departments, such as Florida and New York. The process is strict: candidates must pass a background check and complete an application before scheduling. The exam includes a Clinical Skills test (performed under observation) and a written multiple-choice section.
Prometric States
- Alabama
- Connecticut
- Delaware
- Florida
- Hawaii
- Idaho
- Louisiana
- New Mexico
- New York
- Oklahoma
- Texas