Presumptive does not mean automatic, and it does not mean no evidence. It means one specific link in the chain, the medical nexus to an in-service event, is presumed in your favor; the current diagnosis and the qualifying service still have to be proven. Knowing which of the eleven presumptive categories fits your service is what makes the shortcut work.
What a 'presumptive' claim is
A presumptive service connection claim spares the veteran from proving that a current condition was caused by a specific in service event. If the veteran has the qualifying service AND the listed condition, VA assumes service connection unless the evidence affirmatively shows otherwise. The legal framework lives at 38 CFR 3.307 (presumptive periods and exposures), 38 CFR 3.309 (diseases subject to presumptive service connection), 38 CFR 3.317 (Gulf War undiagnosed illnesses), 38 CFR 3.318 (former POW), 38 CFR 3.320 (Camp Lejeune), and the PACT Act of 2022 (Public Law 117-168).
1. Agent Orange / Herbicide Agents
Who qualifies: Veterans with service in the Republic of Vietnam (boots-on-ground or covered inland waterways) Jan 9, 1962 - May 7, 1975; certain Korean DMZ service Sep 1, 1967 - Aug 31, 1971; certain Thailand service Jan 9, 1962 - June 30, 1976; herbicide-tested locations.
Currently presumptive conditions (38 CFR 3.309(e)): AL amyloidosis, Bladder cancer (added 2021), Chronic B-cell leukemias, Chloracne, Hypothyroidism (added 2021), Hodgkin's disease, Hypertension (added under PACT Act), Ischemic heart disease, Monoclonal gammopathy of undetermined significance (MGUS), Multiple myeloma, Non-Hodgkin's lymphoma, Parkinsonism, Parkinson's disease, Peripheral neuropathy (early-onset), Porphyria cutanea tarda, Prostate cancer, Respiratory cancers (lung, larynx, trachea, bronchus), Soft-tissue sarcomas, Type 2 diabetes mellitus.
2. Blue Water Navy Vietnam Veterans
Who qualifies: Veterans who served on a vessel within 12 nautical miles of the Republic of Vietnam, including the Gulf of Tonkin, between Jan 9, 1962 and May 7, 1975. Established by the Blue Water Navy Vietnam Veterans Act of 2019 (Public Law 116-23) following the Federal Circuit's decision in Procopio v. Wilkie, 913 F.3d 1371 (Fed. Cir. 2019).
Conditions covered: Same Agent Orange presumptive list above.
3. Thailand Herbicide-Exposed Veterans
Who qualifies: Air Force veterans who served at Royal Thai Air Force Bases (U-Tapao, Ubon, Nakhon Phanom, Udorn, Takhli, Korat, Don Muang) as security police or in duties bringing them near the base perimeter, Feb 28, 1961 - May 7, 1975. Expanded by VA rulemaking in 2021 to include other duty types with credible perimeter exposure.
Conditions covered: Same Agent Orange list.
4. Korean DMZ Herbicide-Exposed Veterans
Who qualifies: Veterans assigned to units that operated in or near the Korean Demilitarized Zone, Sep 1, 1967 - Aug 31, 1971 (38 CFR 3.307(a)(6)(iv)).
Conditions covered: Same Agent Orange list.
5. Camp Lejeune Contaminated Water
Who qualifies: Veterans, reservists, and National Guard members on active duty or active duty for training at Camp Lejeune or MCAS New River for at least 30 days, Aug 1, 1953 - Dec 31, 1987 (38 CFR 3.307(a)(7) and 38 CFR 3.320). The Camp Lejeune Justice Act of 2022 (part of the PACT Act) also opened a tort claim path in federal court.
Presumptive conditions (38 CFR 3.309(f)): Adult leukemia, Aplastic anemia and other myelodysplastic syndromes, Bladder cancer, Kidney cancer, Liver cancer, Multiple myeloma, Non-Hodgkin's lymphoma, Parkinson's disease.
6. PACT Act Toxic Exposures (Burn Pits and Other)
Who qualifies (38 CFR 3.320 and PACT Act): Gulf War veterans with service in Southwest Asia after Aug 2, 1990; post-9/11 veterans with service in Afghanistan, Djibouti, Egypt, Jordan, Lebanon, Syria, Yemen, Uzbekistan, or other listed locations after Sept 11, 2001.
Presumptive cancers: Brain cancer, Glioblastoma, Head cancer of any type, Neck cancer of any type, Gastrointestinal cancer of any type, Reproductive cancer of any type, Lymphoma of any type, Kidney cancer, Melanoma, Pancreatic cancer, Respiratory cancer of any type, Lung cancer, Lymphomatic cancer of any type.
Presumptive non-cancer illnesses: Asthma, Chronic bronchitis, Chronic obstructive pulmonary disease (COPD), Chronic rhinitis, Chronic sinusitis, Constrictive bronchiolitis or obliterative bronchiolitis, Emphysema, Granulomatous disease, Interstitial lung disease, Pleuritis, Pulmonary fibrosis, Sarcoidosis.
7. Atomic Veterans / Radiation-Exposed
Who qualifies (38 CFR 3.309(d) and 38 CFR 3.311): Veterans present at atmospheric nuclear tests; occupation forces in Hiroshima or Nagasaki Aug 6, 1945 - July 1, 1946; Department of Energy contractor workers at certain radiation-risk sites; POWs in Japan who, in proximity to the bombings, may have been exposed.
Presumptive cancers: Cancers of bile ducts, bone, brain, breast, colon, esophagus, gall bladder, leukemia (other than chronic lymphocytic), liver, lung, multiple myeloma, ovary, pancreas, pharynx, primary liver cancer (except cirrhosis or hepatitis B), salivary gland, small intestine, stomach, thyroid, urinary tract; lymphomas (other than Hodgkin's).
8. Gulf War / Southwest Asia Undiagnosed Illness
Who qualifies (38 CFR 3.317): Veterans with active military service in the Southwest Asia theater of operations during the Persian Gulf War (Aug 2, 1990 onward, currently still open) OR in Afghanistan from Sept 19, 2001 onward.
Covered conditions: (a) chronic disabilities resulting from undiagnosed illnesses, (b) medically unexplained chronic multi-symptom illnesses (chronic fatigue syndrome, fibromyalgia, functional gastrointestinal disorders including IBS), and (c) nine infectious diseases under 38 CFR 3.317(c): brucellosis, campylobacter jejuni, Coxiella burnetii (Q fever), malaria, Mycobacterium tuberculosis, nontyphoid Salmonella, Shigella, visceral leishmaniasis, West Nile virus.
9. Former Prisoners of War (POW)
Who qualifies (38 CFR 3.318): Veterans who were detained or interned by an enemy government.
Presumptive conditions: Psychosis, Any of the anxiety states, Dysthymic disorder, Organic residuals of frostbite, Post-traumatic osteoarthritis, Heart disease, Stroke and atherosclerotic heart disease residuals, Hypertensive vascular disease, Liver cirrhosis, Peripheral neuropathy (cold injury related). With internment 30+ days: Avitaminosis, Beriberi, Chronic dysentery, Helminthiasis, Malnutrition (including optic atrophy), Pellagra and other nutritional deficiencies, Peptic ulcer disease, Irritable bowel syndrome, Stroke.
10. Tropical Disease Service
Who qualifies (38 CFR 3.309(b)): Veterans with continuous active service of 90 days or more, with the disease manifesting to a 10 percent degree within one year of separation (or within the longer presumptive period for specific diseases).
Presumptive conditions: Amebiasis, Blackwater fever, Cholera, Dracontiasis, Dysentery, Filariasis, Leishmaniasis (including kala-azar), Loiasis, Malaria, Onchocerciasis, Oroya fever, Pinta, Plague, Schistosomiasis, Yaws, Yellow fever, and resultant disorders or diseases originating because of therapy for any of these.
11. Chronic Diseases Manifest Within One Year
Who qualifies (38 CFR 3.307(a)(3) and 38 CFR 3.309(a)): Veterans with continuous active service of 90 days or more, with any listed chronic disease becoming manifest to a 10 percent degree within one year of separation.
Selected presumptive conditions: Arthritis, brain tumors, cancer of certain types (some have longer periods), cardiovascular-renal disease (including hypertension), diabetes mellitus, hemorrhagic disorders, leukemia, lupus erythematosus, multiple sclerosis (within 7 years), myasthenia gravis, peptic ulcer, psychoses, sclerodema, scleroderma, sickle cell anemia, tuberculosis (within 3 years).
How a presumption actually helps your claim
- You do not need a medical nexus opinion linking the condition to a specific in service event.
- You do still need a current diagnosis of the listed condition and proof of qualifying service.
- VA can still deny if affirmative evidence shows the condition was clearly caused by something else.
- Filing under the right presumption is faster and has a higher success rate than the standard direct service connection path.
If you think one of these applies to you, work with a VA accredited representative or VSO to make sure your claim explicitly cites the presumptive regulation and that your service records support the qualifying service.
Where this comes from
- 38 CFR 3.307 (Presumptive service connection, periods of war, exposures)
- 38 CFR 3.309 (Diseases subject to presumptive service connection)
- 38 CFR 3.311 (Claims based on exposure to ionizing radiation)
- 38 CFR 3.317 (Gulf War / Southwest Asia)
- 38 CFR 3.318 (Former prisoners of war)
- 38 CFR 3.320 (Camp Lejeune contaminated water)
- Blue Water Navy Vietnam Veterans Act of 2019, Public Law 116-23
- Procopio v. Wilkie, 913 F.3d 1371 (Fed. Cir. 2019)
- Honoring our PACT Act of 2022, Public Law 117-168
- Camp Lejeune Justice Act of 2022 (Title VIII, Subtitle B of PACT Act)
Before you file a presumptive claim, ask
- Do I have a current diagnosis of a condition actually on the presumptive list for my category (38 CFR 3.309, 3.317, 3.318, or 3.320)?
- Do my service records prove the qualifying service: the dates, locations, or exposure windows the regulation requires?
- Does my claim explicitly cite the presumptive regulation that applies, so the rater works the right theory from the start?
- If I was denied before the condition became presumptive, could Nehmer (38 CFR 3.816) or a PACT Act review reach back to the earlier claim?
- Is there affirmative evidence pointing to another cause, and does my record address it, since VA can rebut a presumption on that basis?
Related on this site
- Presumptive Conditions and Toxic Exposure: How the Presumption Works
- Agent Orange Claims
- Cancers and Environmental Exposures
VA presumptive exposure windows, by location and era
Common questions
What does presumptive service connection mean?
If you have the qualifying service and a listed condition, VA assumes service connection without requiring a medical nexus opinion tying the condition to a specific in service event. You still need a current diagnosis and proof of qualifying service, and VA can deny if affirmative evidence shows the condition was clearly caused by something else.
What are the major presumptive categories?
Agent Orange and herbicide exposure (including Blue Water Navy, Thailand, and Korean DMZ service), Camp Lejeune contaminated water, PACT Act toxic exposures including burn pits, atomic and radiation exposed veterans, Gulf War undiagnosed illnesses, former prisoners of war, tropical diseases, and chronic diseases that manifest within one year of separation. The rules live at 38 CFR 3.307, 3.309, 3.311, 3.317, 3.318, and 3.320.
Who is covered by the Camp Lejeune presumption?
Veterans, reservists, and Guard members on active duty or active duty for training at Camp Lejeune or MCAS New River for at least 30 days between August 1, 1953 and December 31, 1987. The presumptive conditions are adult leukemia, aplastic anemia and other myelodysplastic syndromes, bladder cancer, kidney cancer, liver cancer, multiple myeloma, non-Hodgkin's lymphoma, and Parkinson's disease. The Camp Lejeune Justice Act also opened a separate federal court tort path.
What is the one year chronic disease presumption?
Veterans with 90 or more days of continuous active service get presumptive service connection for listed chronic diseases (arthritis, hypertension, diabetes, psychoses, and others under 38 CFR 3.309(a)) that become manifest to a 10 percent degree within one year of separation. Some diseases have longer windows: multiple sclerosis has seven years and tuberculosis three.
Do former prisoners of war have their own presumptions?
Yes, under 38 CFR 3.318. Any former POW is presumed for conditions including psychosis, anxiety states, heart disease, stroke residuals, and post-traumatic osteoarthritis. Internment of 30 days or more adds nutrition related conditions such as beriberi, chronic dysentery, malnutrition, peptic ulcer disease, and irritable bowel syndrome.