Most service-connection claims need three things: a current diagnosis, something that happened in service, and a medical link between the two. A presumption takes the hardest piece, the link, off your shoulders.
That is what the PACT Act did for Gulf War era and post-9/11 veterans, and it widened the Agent Orange map for Vietnam era veterans. But a presumption only works when two boxes are checked: the right place and time, and the right diagnosis. Miss either one and you are back to a direct claim that needs medical evidence.
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This is general information, not medical or legal advice. Only VA decides eligibility.
| Presumption | Where | When |
|---|---|---|
| Burn pits and toxins | Bahrain, Iraq, Kuwait, Oman, Qatar, Saudi Arabia, Somalia, UAE | On or after Aug. 2, 1990 |
| Burn pits and toxins | Afghanistan, Djibouti, Egypt, Jordan, Lebanon, Syria, Yemen, Uzbekistan | On or after Sept. 11, 2001 |
| Agent Orange | Vietnam | Jan. 9, 1962 to May 7, 1975 |
| Agent Orange | Any U.S. or Royal Thai base in Thailand | Jan. 9, 1962 to June 30, 1976 |
| Agent Orange | Laos | Dec. 1, 1965 to Sept. 30, 1969 |
| Agent Orange | Mimot or Krek, Kampong Cham Province, Cambodia | Apr. 16 to Apr. 30, 1969 |
| Agent Orange | Guam or American Samoa, or their territorial waters | Jan. 9, 1962 to July 31, 1980 |
| Agent Orange | Johnston Atoll, or a ship that called there | Jan. 1, 1972 to Sept. 30, 1977 |
For Thailand, the law now covers anyone on a U.S. or Royal Thai base during that window, no matter where on the base you worked or what your job was. Before the PACT Act, many Thailand claims stalled on questions about perimeter duty.
A presumption means VA assumes the exposure happened and assumes the listed disease came from it, even with nothing in your service treatment records. You don't need a nexus opinion for that link.
It does not prove the diagnosis for you, and it does not set your rating. You still need a clear, current diagnosis in your records, and the rating still depends on how severe the condition is. VA can also rebut a presumption with affirmative evidence, such as a different cause that came after service.
Previously denied? If VA denied a condition that is now on a presumptive list, VA says you can file a Supplemental Claim and it will review the case again. If your claim was still pending when a condition was added, VA will treat it as presumptive without a new filing.
This is where many veterans give up too early. The PACT Act also tells VA it may weigh exposure-tracking records and the totality of your service circumstances when you claim a toxic exposure that isn't presumptive. You can still win a direct claim. You just carry the link yourself, which usually means a medical opinion that explains, with reasoning and literature, why your condition is at least as likely as not related to what you breathed, drank or handled. That's what we cover in what makes a Nexus Letter hold up.
Conditions that grow out of a presumptive one can be claimed too. Asthma that worsens sleep, or diabetes that leads to neuropathy, are secondary claims, and those do need a medical link.
Take the free readiness check. A few questions about your service, diagnosis and records, and you'll see whether a Nexus Letter or DBQ could help.
Dr. Robert Clinton is a former Army physician at Fort Bragg and a 100% service-connected disabled veteran. Since 2011 he has performed or taken part in more than 30,000 VA disability exams and DBQs. More about Dr. Clinton
This article is general information, not medical or legal advice. NEXUS Ready does not represent claimants and cannot guarantee any VA decision. Every claim depends on its own record.
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