A bill to expand the scope of a study required to be conducted by the Administrator of Veterans' Affairs concerning the effect on humans of exposure to the chemical known as Agent Orange.

Amends the Veterans' Health Programs Extension and Improvement Act of 1979 to permit the Administrator of Veterans' Affairs to include in an epidemiological study of the long-term adverse health effects in humans in service in Vietnam from exposure to agent orange an evaluation of the adverse effects of other factors involved in such service, including exposure to other herbicides, chemicals, medications, or environmental hazards or conditions. Permits the inclusion of a review and analysis of the literature concerning the effects of such factors in the Administrators' review and analysis of the Agent Orange literature.