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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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Serving the Public Interest

NBCOT provides a world-class standard for certification of occupational therapy practitioners. We develop, administer, and continually review our certification process based on current and valid standards that provide reliable indicators of competence of the practice for occupational therapy. Above all else, NBCOT’s mission is to serve the public interest.

Seeking a Certified OT Professional

NBCOT certified OTR and COTA professionals are known as certificants.  If a certificant fails to renew their national certification, or if they have faced disciplinary action, they are not permitted to carry the NBCOT registered credential trademarks.

When you are seeking occupational therapy services, look for the following NBCOT credentials:

  • OTR® - Occupational Therapist Registered

  • COTA® - Certified Occupational Therapy Assistant

When you seek out an OTR or COTA, you will find an OT professional who agrees to follow our Practice Standards and Code of Conduct, and fulfills continual professional development requirements. For more information about researching an OT professional, use our Questions to Ask guide.

To get started, verify that your provider is certified with NBCOT.


What is Occupational Therapy?

Thanks to the UBC Dept of Occupational Science & Occupational Therapy for this video

Resources for the Public