RMA vs. CMA: What's the Difference Between These Medical Assistant Certifications?

RMA (Registered Medical Assistant) and CMA (Certified Medical Assistant) are both credentials for medical assistants, but they are issued by different organizations and carry different names. AMT awards the RMA credential, while the CMA is most commonly associated with the AAMA (American Association of Medical Assistants). Both signal that a medical assistant has met a certification standard, but the eligibility paths, exam bodies, and maintenance requirements differ. If you are choosing which to pursue, the deciding factors are usually your education background, which exam you can access, and what employers in your area recognize.

What Each Credential Stands For

AMT is a not-for-profit association of allied health professionals, established in 1939, and its certification programs are NCCA-accredited. AMT lists the Medical Assistant (RMA) among its credentials, alongside roles such as Medical Laboratory Scientist (MLS), Phlebotomy Technician (RPT), and Medical Administrative Specialist (CMAS).

The word difference — "Registered" versus "Certified" — is largely a naming convention tied to the issuing organization, not a measure of one being inherently stronger. What matters more is the eligibility route and how each is maintained.

Eligibility and Education Requirements

The two credentials differ in the education and experience pathways they accept.

• RMA (AMT): AMT provides an eligibility check on its site ("Are you eligible for certification?"). AMT accepts multiple routes, which can include completion of an accredited medical assistant program, a formal military medical training program, or a combination of education and work experience. Because AMT certifies a broad range of allied health roles, its eligibility framework is built to accommodate different training backgrounds.
• CMA (AAMA): The CMA exam is generally tied to graduation from a CAAHEP- or ABHES-accredited medical assisting program. This makes the CMA route more directly linked to formal, accredited classroom training.

If you completed an accredited medical assisting program, you may qualify for either. If your training came through military service or on-the-job experience, the RMA pathway is often the more accessible option.

Exam Process

Both require passing a certification exam, but the exams are developed and administered by different bodies.

• The RMA exam is administered through AMT. AMT describes its process as "Accessible, Affordable & Simple," and its site includes a Learning Center with courses, enhanced search, and 24/7 access for exam preparation.
• The CMA exam is administered through the AAMA, typically after program completion.

For either, expect a multiple-choice exam covering clinical and administrative medical assisting content. Verify current exam content outlines, fees, and testing windows directly with AMT or the AAMA, since these change.

Recertification and Continuing Education

Both credentials require ongoing maintenance, usually through continuing education (CE) credits and recertification on a set cycle.

• AMT provides CE opportunities online and through local and national meetings, and states that once certified, you are automatically entitled to member benefits. AMT frames certification as a "lifelong career partner" relationship, with career development and networking support.
• AAMA similarly requires CE credits for CMA recertification, with its own approved CE providers and reporting process.

The practical difference is which CE providers and activities each organization accepts. If you already earn CE through one body's system, staying within that system is simpler.

How Employers and States View Them

Both RMA and CMA are recognized credentials, and many employers accept either. However:

• Some employers list a specific credential in job postings, so check local listings in your target market.
• Scope of practice for medical assistants is generally set by state law, not by the certifying body. Neither credential independently expands what you are legally allowed to do. State regulations determine tasks such as administering injections or drawing blood.
• Because scope-of-practice rules vary by state, confirm your state's requirements before assuming a credential changes your legal duties.

Practical Factors for Choosing

Choose based on:

1. Your background — accredited program graduate: either works; military or experience-based: RMA is often more accessible.
2. Your local job market — check which credential appears in postings where you want to work.
3. CE convenience — pick the body whose CE system you can maintain most easily.
4. Cost and exam access — compare current fees and testing availability directly with each organization, as these are not fixed.

Neither credential is universally "better." The right choice depends on your training, your state, and the employers you are targeting.