Occupational Therapy Assistant (Certified, Registered, Licensed) Certification Exam

Occupational Therapy Assistant (Certified, Registered, Licensed) The COTA credential is recognized across all 50 states and regulated by the National Board for Certification in Occupational Therapy, making it the gold standard employers check first when hiring. Licensure requirements vary by state, but the certification itself signals mastery of client safety, adaptive techniques, and treatment planning under supervision—competencies no unlicensed assistant can claim.