The Post-Deployment Health Strategic Healthcare Group (PDHSHG) Registry System of Records is the information system encompassing the Ionizing Radiation Registry (IRR), the Agent Orange Registry (AOR), and the Gulf War Registry (GWR) which also includes related Depleted Uranium (DU) exams. The AOR area of the PDH database contains VA entered information about U.S. Veterans who served in the Republic of Vietnam between 1962 and 1975, in Korea between April 1968 and August 1971, or who had a registry exam because of possible exposure to dioxin or another toxic substance in an herbicide during the conduct of, or as a result of, the testing, transporting, or spraying of herbicides for military purposes.