Which group focuses specifically on the accreditation of rehabilitation programs and services?

The group that focuses specifically on the accreditation of rehabilitation programs and services is the Commission on Accreditation of Rehabilitation Facilities (CARF). CARF is dedicated to enhancing the quality of life of individuals served by various rehabilitation programs, including those for mental health, substance abuse, and physical rehabilitation. Their accreditation process sets standards to ensure effective treatment and quality service delivery in rehabilitation settings.

While the other organizations listed also play significant roles in healthcare accreditation and quality improvement, they cover broader areas. For example, the Joint Commission tackles a wide range of healthcare settings, including hospitals and nursing homes, while entities like the AAAHC focus on ambulatory healthcare. HFAP functions similarly by providing accreditation for various healthcare organizations but does not specialize exclusively in rehabilitation programs. Thus, CARF's specific emphasis on rehabilitation makes it the correct choice for this question.