Though no specific undergraduate degree is required, the majority of rehabilitation counseling graduate students have undergraduate degrees in rehabilitation services, psychology, sociology, or other human services-related fields. As a master's degree is required at a minimum, rehabilitation counselors are trained at the graduate level, with most earning a master's degree, and a few continuing on to the Doctoral level. The Council on Rehabilitation Education (CORE) accredits qualifying institutions, though not all programs meet accreditation requirements, prohibiting some graduates from professional certification/licensure. Rehabilitation counselors are trained in the following areas: