How to Check a Personal Trainer's Certification (and Which Ones Are Accredited)

In many places, there are no specific licensing requirements to call yourself a personal trainer. A professional certification, however, demonstrates that a trainer has passed an exam designed to assess their knowledge of safe and effective training practices. Here’s how to tell which is which, and how to confirm a trainer’s credential is real and current.

Certification, not a license

The Bureau of Labor Statistics says certification is the main credential for fitness trainers, and that personal trainers “usually must be certified before they begin working with clients” [1]. Most trainers and instructors also need CPR, first aid and AED certification [1]. Employers prefer to hire certified trainers [1].

A certification isn’t a government license. Whether your state requires anything more of trainers is a question for your state’s professional licensing agency, so check your state. One example of how rules shift: Washington, D.C. added a registration law for personal fitness trainers in 2014, and the D.C. Council repealed it in 2024 [8].

What NCCA accreditation means

The National Commission for Certifying Agencies (NCCA) is the accrediting arm of the Institute for Credentialing Excellence (ICE), which keeps a directory of the certification programs it has accredited [2].

What it means: an outside body reviewed the certification program, including its exam and how it’s run, and found it met its standards.

What it doesn’t mean:

• It doesn’t vouch for any individual trainer’s skill, judgment or record.
• It doesn’t accredit training courses, workshops or weekend classes. A trainer can finish a course without passing an accredited exam.
• It doesn’t mean the trainer’s certification is still current. Certifications expire unless renewed.

ACE’s two personal-trainer credentials show why the details matter. Its ACE Certificate uses an online, open-book exam with 100 questions and unlimited free retakes. Its ACE Certified Personal Trainer credential uses a closed-book exam with a live proctor, 150 questions and a scaled passing score, and it’s the one that’s NCCA-accredited [4]. ACE describes employer acceptance of the Certificate as “limited” [4].

Which certifications are NCCA-accredited

These personal-trainer credentials are described as NCCA-accredited by the certifying body itself or by USREPS. Accreditation can lapse or change, so confirm a specific program in ICE’s directory [2].

USREPS lists the ACE, ACSM, NCCPT, NCSF and NSCA personal trainer credentials as NCCA-accredited [5]. ACE says each of its four primary certifications is NCCA-accredited [6]. NASM says its NASM-CPT is “an NCCA-accredited certification” and must be renewed every two years by earning 2.0 continuing education units [7].

How to look a trainer up

1. Ask for the details. A certified trainer should be glad to tell you the certifying organization, the exact credential and the credential number. If they won’t, that’s your answer.

2. Search USREPS. The U.S. Registry of Exercise Professionals is a free public registry of exercise professionals who hold NCCA-accredited or ISO 17024-compliant certifications from its member organizations [3]. It says it covers more than 130,000 professionals [3]. Its member organizations include ACE, ACSM, NCCPT, CSCCa, NCSF and NSCA [3].

In the registry search, you can enter a name, credential, credential number, organization or location. USREPS suggests a “two-field verification such as last name and credential code,” and notes that “the credential code must be completely accurate to validate the professional” [9]. Searches that are too broad are capped at 500 results [9].

3. Check with the certifying body. If the credential isn’t from a USREPS member, go to the certifying organization. ACE’s Find an ACE Pro directory lists its certified professionals and lets you filter by location, specialty and credential type [6]. NASM isn’t among the USREPS member organizations listed above, so contact NASM directly to confirm a NASM-CPT is current.

4. Check the dates. Ask when the certification was earned and when it expires. NASM’s CPT, for example, has to be renewed every two years [7].

5. Ask about CPR and AED. Ask to see a current CPR/AED card. The BLS says most trainers need these on top of their fitness certification [1].

Red flags

• The trainer can’t name the organization or give a credential number.
• The “certification” came from a weekend course or a single online class with no proctored exam.
• The credential expired and wasn’t renewed.
• The trainer gives medical advice, diagnoses injuries or promises a specific result. Those are outside a trainer’s role.