Toxic exposure and presumptive conditions
When a condition is presumptive, VA presumes the connection to your service once you show qualifying service and a current diagnosis. That removes one of the hardest parts of a claim. These guides break down the major presumptive programs, from the PACT Act and Agent Orange to radiation, former prisoners of war, and tropical service.
The PACT Act expanded VA care and benefits for Gulf War era and post 9/11 veterans exposed to burn pits and other airborne hazards, and added new presumptive conditions.
Veterans exposed to Agent Orange and other tactical herbicides have a long list of presumptive conditions, where VA presumes the service connection with qualifying service.
Gulf War veterans can be service connected for chronic multisymptom illnesses and undiagnosed illnesses, even when no specific diagnosis is reached.
Veterans and family members exposed to contaminated water at Camp Lejeune have presumptive conditions for VA benefits, plus a separate court claim path under the Camp Lejeune Justice Act.
Atomic veterans and others who took part in a radiation risk activity have a list of presumptive cancers, plus a separate dose reconstruction path for cancers that are not on the list.
Former prisoners of war have an expanded presumptive list under 38 CFR 3.309(c), with extra conditions added for anyone held 30 days or more.
Veterans who served in tropical endemic areas have presumptive tropical diseases under 38 CFR 3.309(b), including their later residuals.
A short walkthrough that maps your era and locations to the VA presumptive programs your service touches. Nothing saved, nothing shared.
The military recorded what was in the air, water, and soil at many bases, and VA wrote internal fact sheets about several hazards in 2010. Those records can supply real exposure evidence, especially for conditions that are not presumptive.
Some sites, such as Fort McClellan, Naval Air Facility Atsugi, and the herbicide tests and storage locations outside Vietnam, had documented hazards but no blanket presumption. You can still claim them with the right evidence.