Breadcrumb Home Occupational Therapy Assistant (OTHA) OTHA 1166 OTHA 1166: Practicum - Occupational Therapy Assistant-Level I Download as PDF Class Program Occupational Therapy Assistant (OTHA) Credits 1 Lecture Hours 0 Lab Hours 0 Clinical Hours 10 CIP 51.0803 Practical, general workplace training supported by an individualized learning plan developed by the employer, college, and student. One hundred, sixty clinical hours. Prerequisites OTHA 1305, OTHA 1409, and OTHA 2301.