COTA stands for Certified Occupational Therapy Assistant, a licensed healthcare professional who works directly with patients to help them regain or maintain the ability to perform everyday tasks. COTAs work under the supervision of a registered occupational therapist (OTR) and handle much of the hands-on treatment patients receive during occupational therapy sessions. About 49,200 people held occupational therapy assistant jobs in the U.S. in 2024.
What a COTA Actually Does
The simplest way to understand a COTA’s role is through the division of labor with the occupational therapist they work alongside. The OTR evaluates the patient, designs a treatment plan, and writes discharge documents. The COTA carries out that plan, working face-to-face with patients through each session, documenting progress, and reporting back to the OTR on how treatment is going.
In practice, this means COTAs spend most of their day guiding patients through therapeutic activities. They help people relearn how to dress themselves after a stroke, teach someone with a new wheelchair how to use it safely, set up adaptive equipment like orthotics or assistive devices for grooming, and modify a patient’s living space to make it more accessible. They also work on physical mobility through stretching and exercise, coach patients through meal preparation and self-feeding, and help children develop fine and gross motor skills. The work is physical, personal, and highly varied depending on the patient population.
Patient Populations
COTAs work with people across the entire lifespan. In pediatrics, they commonly treat children with developmental conditions like autism, cerebral palsy, and Down syndrome, focusing on skills like grasping objects, drawing, sitting upright, walking, and building social and cognitive abilities. In rehabilitation settings, they help adults recovering from stroke, traumatic brain injury, or spinal cord injury regain functional independence. In geriatrics, COTAs work with older adults to maintain autonomy and quality of life as aging, arthritis, or cognitive decline make daily tasks harder.
Where COTAs Work
The largest share of occupational therapy assistants, about 40%, work in outpatient therapy offices alongside physical therapists, speech therapists, and audiologists. Another 18% work in skilled nursing facilities, and 18% in hospitals. Smaller but significant numbers work in schools (7%) and home healthcare (6%). The setting shapes the day-to-day experience considerably. A COTA in a skilled nursing facility might focus on helping residents maintain enough function to feed and dress themselves, while one in a school system could spend the day helping children with sensory processing issues participate in classroom activities.
How COTAs Differ From OTs
The distinction comes down to evaluation versus implementation. An occupational therapist holds a master’s or doctoral degree, evaluates patients, creates treatment plans, and makes clinical decisions about the direction of care. A COTA holds an associate degree, carries out the treatment plan the OT designed, and provides ongoing feedback about the patient’s response to therapy. The OT also provides clinical supervision of the COTA, though the level of oversight required varies by state. Some states allow COTAs to work with general supervision (the OT is available but not necessarily on-site), while others require more direct oversight, especially for newer practitioners.
This structure doesn’t mean COTAs are passive. They exercise clinical judgment during sessions, adapt activities in real time based on a patient’s pain or fatigue, and their observations directly shape how the OT adjusts the treatment plan. Many patients interact far more with their COTA than with the supervising OT.
Education and Certification
Becoming a COTA requires graduating from an occupational therapy assistant program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE). These are typically two-year associate degree programs offered at community colleges and technical schools. The curriculum includes coursework in anatomy, therapeutic techniques, and psychology, along with supervised clinical fieldwork where students treat real patients.
After graduation, candidates must pass the national certification exam administered by the National Board for Certification in Occupational Therapy (NBCOT). Passing this exam earns the COTA credential. Nearly every state then requires a separate state license to practice, which involves its own application and fee.
Licensing and Continuing Education
State licensing requirements vary, but most states require COTAs to renew their license every one to two years and complete continuing education to stay current. Indiana, as a representative example, requires 18 hours of continuing education every two years for license renewal, with at least half of those hours coming from formal, structured learning activities like workshops or accredited courses. The renewal fee there is $100. Other states set their own hour requirements and fees, so COTAs who relocate need to check the rules in their new state.
Continuing education topics can range from new intervention techniques and emerging research on specific conditions to ethics and documentation standards. This ongoing requirement ensures COTAs stay updated on best practices throughout their careers.
Career Outlook
Demand for occupational therapy assistants is strong and expected to grow. An aging population that needs help maintaining independence, combined with greater recognition of occupational therapy’s role in rehabilitation and pediatric care, keeps the field expanding. The relatively short educational path (two years versus the six or more required for an OT) makes it an accessible entry point into healthcare for people drawn to hands-on patient care without committing to a graduate degree.