The National Board for Certification in Occupational Therapy
(NBCOT) is a not-for-profit credentialing agency that provides certification for the occupational therapy profession. NBCOT serves the public interest by developing, administering, and continually reviewing a certification process that reflects current standards of competent practice in occupational therapy. they also work with state regulatory authorities, providing information on credentials, professional conduct, and regulatory and certification renewal issues.
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National Library of Medicine is the source for the wealth of reliable information. Here are selected resources from NLM.