Osteopathic postdoctoral training institutions.

The Osteopathic Postdoctoral Training Institution (OPTI) program was established by the American Osteopathic Association (AOA) in 1995 as a support and accreditation structure for osteopathic graduate medical education. Since 1999, all AOA-approved postdoctoral training programs are required to take place in OPTIs. In a continuing effort to further define standards for quality and to promote program development, the AOA's 2007 Annual OPTI Workshop focused on recommended changes to the OPTI standards document. In addition, an OPTI Inspectors Workshop was held in January 2008 to increase interrater reliability in determining whether individual OPTIs have met specific criteria.