AO Government Abbreviation

Advisory Opinion

Auxiliary Oiler

Agreed Order

Agent Orange

An herbicide and defoliant containing 2,4-D and 2,4,5-T and trace amounts of dioxin. Agent Orange was used as a defoliant in the Vietnam War. Agent Orange is a carcinogen and teratogen. The Institute of Medicine of the National Academies in the US has found "sufficient evidence" of an association between exposure to Agent Orange and the risk of developing chronic lymphocytic leukemia (CLL), non-Hodgkin lymphoma (NHL), Hodgkin disease, soft tissue sarcoma and diabetes.

Angola

Administrative Offichr

Administrative Ofiice

Audit Office

Adjudications Officer