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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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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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NBCOT Refund Policy

There are no refunds, returns, or exchanges for products or services except in cases of duplicate payments, overpayments, or exam application withdrawals. There is a $40 processing fee for all refunds.

Withdrawals of the exam application must be requested in writing (email accepted: by the candidate for consideration of a partial refund. If the refund is granted, a candidate cannot apply for the exam for one full year from the date of the refund request.

Any refund granted will be refunded by the same payment method and to the same party as the original transaction.