From the Document: "The Blue Water Navy Vietnam Veterans Act of 2019 (P.L. 116-23) is the most recent action taken by Congress to grant disability compensation benefits to veterans exposed to Agent Orange, a combination of tactical herbicides used by the U.S. military in Vietnam. Earlier legislation directed the Department of Veterans Affairs (VA) to provide some veterans with VA benefits for specific disabilities without requiring proof of actual exposure to Agent Orange."
CRS In Focus, IF11368
Congressional Research Service: https://crsreports.congress.gov/