The American Board of Psychiatry and Neurology, Inc. (ABPN) is a not-for-profit corporation that was founded in 1934 following conferences of committees appointed by the American Psychiatric Association, the American Neurological Association, and the then "Section on Nervous and Mental Diseases" of the American Medical Association. This action was taken as a method of identifying qualified specialists in psychiatry and neurology. The ABPN is one of 24 member boards of the American Board of Medical Specialties.
https://en.wikipedia.org/wiki/American_Board_of_Psychiatry_and_Neur...