The Herzing OTA associate degree program takes an average of 24 months to complete. That means depending on when you start and how quickly you earn your certification (passing the NBCOT exam), you may be able to become a Certified Occupational Therapist Assistant (COTA) in 2 years. Learn more about the Herzing OTA program Explore Now Other Questions What are the different types of nursing degrees? How much does a paralegal / legal assistant make? How much can I work during an accelerated nursing program? Do you need a degree to be a paralegal?