I want to explain the letters after my name. OTR/L I am an occupational therapist (OT). I graduated from the University of Toronto with a Bachelor of Science in Occupational Therapy in 1993. The R after the OT means that I am registered by the National Board for Certification in Occupational Therapy which “serves the public interest by advancing client care and professional practice through evidence-based certification standards and the validation of knowledge essential for