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Serving the public interest by advancing client care and professional practice through evidence-based certification standards and the validation of knowledge essential for effective practice in occupational therapy.


Certified occupational therapy professionals providing effective evidence-based services across all areas of practice worldwide.

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Contact Us

The National Board for Certification in Occupational Therapy, Inc. (NBCOT®)

12 South Summit Avenue
Suite 100
Gaithersburg, MD 20877
(301) 990-7979

Email NBCOT at

Business Hours
Monday-Thursday: 9 am – 5 pm, Lunch: 12 pm – 12:45 pm

Friday: 9 am – 4 pm, Lunch: 12 pm – 1 pm


OTR® & COTA® Credential Verification

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About the Exam

The purpose of the NBCOT certification exam is to protect the public interest by certifying only those candidates who have the necessary knowledge of occupational therapy to practice.

The OCCUPATIONAL THERAPIST REGISTERED (OTR®) and CERTIFIED OCCUPATIONAL THERAPY ASSISTANT (COTA®) examinations are constructed to measure entry-level competence of candidates who have met eligibility requirements for certification of the respective credential.

The OTR and COTA examinations are constructed based on the results of practice analysis studies. The studies identify the domains, tasks, and knowledge required for occupational therapy practice relative to the respective credential. The ultimate goal of a practice analysis study is to ensure that there is a representative linkage of examination content to practice. The periodic performance of practice analysis studies assists NBCOT with evaluating the validity of the test specifications that guide content distribution of the credentialing examinations.

The NBCOT certification examinations are administered at Prometric Test Centers (PTCs) worldwide. Prometric delivers and administers more than 10 million tests a year on behalf of approximately 400 clients in the academic, financial, government, healthcare, professional, corporate, and information technology markets. It delivers tests flexibly via the Web or by utilizing a robust network of more than 10,000 test centers in more than 160 countries. For more information, please visit

For more information regarding the certification exam and application process, email us at, or call (301) 990-7979.