The Defense Officer Personnel Management Act (the Act) for Medical Officer Pay and Entitlements was passed in December 1980, and was implemented on September 15, 1981. The Act eliminated constructive service credit for pay purposes for students who enrolled in the Uniformed Services University of the Health Sciences (USUHS) and the Armed Forces Health Professions Scholarship Program (HPSP) after September 14, 1981. Constructive service credit was no longer needed for longevity pay purposes because the Act restructured the pay system for military health professionals. Our objective was to determine whether the Act was properly implemented for medical officer pay and entitlements. We also evaluated whether the Boards for the Correction of Military and Naval Records (the Boards) acted appropriately in subsequently awarding constructive service credit for pay purposes to the 1985 and 1986 USUHS and HPSP graduates (the first graduating classes to be affected by the Act). Specifically, we determined whether the Boards' actions were within the scope of their authority and were procedurally sound.