PACT Act and Toxic Exposure Veterans Benefits — Burn Pits, Agent Orange, and Presumptive Service Connection

One of the hardest problems in veterans disability law is proving that a disease you developed years after leaving the military was caused by your service. A Vietnam veteran with Parkinson's disease can't be expected to show a doctor's note from 1968 documenting exposure to Agent Orange. A post-9/11 veteran who developed bladder cancer after serving near burn pits in Iraq or Afghanistan faces the same impossible evidentiary burden. Congress's answer — built into law over decades and significantly expanded by the PACT Act of 2022 — is the "presumptive service connection": for veterans exposed to specific hazards, certain diseases are presumed to be service-connected without requiring individual proof of causation. The veteran still must document their service and diagnosis, but the VA cannot deny the claim simply because there's no direct causal evidence linking the two. The PACT Act added more than 20 new presumptive conditions for veterans exposed to burn pits and airborne hazards, extended Agent Orange presumptions to Blue Water Navy veterans and veterans who served in Korea and Thailand, and established new processes for the VA to evaluate and add new toxic exposure presumptions.

Current Law (2026)

Legal Authority

• 38 U.S.C. § 1116 — Presumptions of service connection for herbicide-exposed veterans: veterans who served in Vietnam, offshore Vietnam (§ 1116A), or Korean DMZ (§ 1116B) during covered periods and develop specified diseases are presumed to have service-connected conditions without proof of direct exposure
• 38 U.S.C. § 1118 — Gulf War illness presumptions: veterans who served in the Southwest Asia theater after August 2, 1990 — the Persian Gulf War era — may establish presumptive service connection for chronic undiagnosed illnesses and certain conditions without proof that a specific toxic agent caused the illness
• 38 U.S.C. § 1119 — Toxic exposure records and claims: if a veteran submits a claim with evidence of disability and evidence of participation in a toxic exposure risk activity, VA must consider the exposure records in adjudicating the claim; establishes the Airborne Hazards and Open Burn Pit Registry
• 38 U.S.C. § 1120 — Burn pit and airborne hazard presumptions (added by PACT Act): veterans who served in covered locations and develop covered diseases are presumed service-connected; covered diseases include many cancers, respiratory conditions, and other illnesses associated with toxic exposure
• 38 U.S.C. § 1171 — Toxic exposure evaluation procedures: VA must follow a formal process for establishing or removing presumptive conditions, including public notice, scientific review by the National Academies of Sciences, and opportunity for public comment; VA cannot remove a presumption without Congressional notification
• 38 U.S.C. § 1176 — National Academies agreement: VA must contract with the National Academies of Sciences to review scientific evidence on toxic exposures and associated diseases, providing an independent scientific basis for presumption decisions

Agent Orange: The Foundation of Toxic Exposure Law

The herbicide presumption framework in § 1116 reflects decades of advocacy by Vietnam veterans. Agent Orange — the defoliant sprayed extensively in Vietnam — contains dioxin (TCDD), one of the most toxic synthetic compounds known. Thousands of Vietnam veterans developed cancers, neurological conditions, and other diseases at rates higher than the general population, but proving that a specific veteran's cancer was caused by their Vietnam service was practically impossible.

The presumptive conditions for Agent Orange-exposed veterans (those who served "in the Republic of Vietnam" between January 9, 1962, and May 7, 1975, or in covered other locations) include:

• Cancers: Bladder cancer, chronic B-cell leukemia, Hodgkin's disease, multiple myeloma, non-Hodgkin's lymphoma, prostate cancer, respiratory cancers (lung, bronchus, larynx, trachea), soft tissue sarcomas
• Other conditions: AL amyloidosis, chloracne, diabetes mellitus (Type 2), hypothyroidism, ischemic heart disease, monoclonal gammopathy, Parkinson's disease and Parkinsonism
• Added by PACT Act: Hypertension (high blood pressure) was added as a presumptive condition for veterans with exposure to Agent Orange and other qualifying toxic exposures

Blue Water Navy: For decades, veterans who served on ships offshore Vietnam (without setting foot on Vietnamese soil) were excluded from the Agent Orange presumptions. § 1116A, enacted in 2019 and expanded by the PACT Act, extends the presumption to veterans who served on ships that entered Vietnam's territorial waters (within 12 nautical miles of the shore) or who were present on the mainland or brown water areas.

The PACT Act: Burn Pits and Post-9/11 Toxic Exposure

The PACT Act of 2022 was primarily focused on post-9/11 veterans who served near open burn pits — large pits used to dispose of waste (including hazardous materials) through incineration at military installations in Iraq, Afghanistan, and other locations. Studies found elevated rates of respiratory disease and cancer among veterans exposed to burn pit smoke.

Section 1120 establishes presumptive service connection for veterans who served at covered locations (including Iraq, Afghanistan, Syria, Djibouti, the Persian Gulf, and other Southwest Asia theater locations) on or after August 2, 1990, for covered diseases including:

• All cancers not excluded (the PACT Act uses a broad, inclusive cancer list)
• Respiratory conditions including constrictive bronchiolitis, constrictive pericarditis, and granulomatous lung disease
• Reproductive, gastrointestinal, and other conditions linked to toxic exposure

The PACT Act also:

• Directed VA to provide free toxic exposure screenings to all veterans
• Created the Airborne Hazards and Open Burn Pit Registry for veterans to document their exposure
• Established a framework for ongoing evaluation of new toxic exposure presumptions
• Required the National Academies of Sciences to periodically review evidence on specific toxic exposures
• Removed a prior requirement that certain Gulf War illness conditions manifest within a specific time after service

Gulf War Illness

Gulf War illness is a term covering a cluster of chronic unexplained symptoms affecting veterans of the 1990-91 Gulf War: fatigue, musculoskeletal pain, cognitive problems, sleep disturbances, skin conditions, and gastrointestinal disorders. Unlike Agent Orange or burn pit exposure, which involve specific chemicals linked to specific diseases, Gulf War illness involves symptoms without a clear etiology.

Section 1118 allows veterans who served in the Southwest Asia theater after August 2, 1990, to establish presumptive service connection for:

• Chronic undiagnosed illnesses manifesting to a compensable degree (even without a specific diagnosis)
• Functional gastrointestinal disorders
• Certain other conditions the VA determines are associated with the Gulf War deployment

The PACT Act expanded and clarified Gulf War illness provisions, removing time limitations and broadening the covered conditions.

How It Affects You

If you're a Vietnam-era veteran: If you served in Vietnam between 1962 and 1975 (or offshore in the territorial waters) and have developed any of the listed conditions — prostate cancer, ischemic heart disease, Parkinson's disease, diabetes, or any of the other listed conditions — you may have a presumptive service-connected disability. You don't need to prove your cancer was caused by Agent Orange; your Vietnam service and current diagnosis are sufficient. File a VA disability claim if you haven't already.

If you're a Blue Water Navy veteran: If you served on a ship that entered Vietnam's territorial waters and were previously denied Agent Orange benefits, you may be able to reopen your claim under § 1116A. Contact a veterans service organization (VSO) for help. See VA Disability Compensation for the rating system and benefit amounts.

If you served near burn pits in Iraq, Afghanistan, or other Southwest Asia locations: If you developed cancer or a respiratory condition after your service, the PACT Act may have established a new presumptive connection. File a claim through VA.gov or through a VSO. If you were previously denied a similar claim, the PACT Act's retroactive provisions may allow you to reopen it.

If you're a Gulf War veteran with unexplained chronic symptoms: You may qualify for a presumptive disability rating for Gulf War illness even without a specific diagnosis. Chronic fatigue, musculoskeletal pain, and functional GI disorders are among the covered conditions.

If your claim was previously denied: The PACT Act created a process for retroactive claims for veterans who were denied service connection before new presumptions were established. Contact a VSO (American Legion, VFW, DAV, or VA-accredited claims agents) for help reopening your claim.

State Variations

VA disability benefits are exclusively federal — no state-level counterparts. However, many states offer additional benefits for veterans with VA disability ratings, including property tax exemptions (often for ratings of 70%+ or 100%), additional education benefits, and vehicle registration discounts. These state benefits are not directly tied to the PACT Act but are available to veterans who receive a VA disability rating under PACT Act presumptions.

Pending Legislation

The VA has been working to implement all PACT Act provisions and has faced backlogs in processing the surge of new claims following the law's enactment. Congress has appropriated additional resources for VA to hire claims processors. VA continues to evaluate new toxic exposure conditions for potential inclusion as presumptive conditions through the National Academies review process established under § 1176.

Recent Developments

The PACT Act of 2022 was one of the most significant expansions of veterans benefits in decades, affecting an estimated 3.5 million veterans. Since enactment, VA has processed millions of new claims under the new presumptions, approving a large portion. Burn pit survivor Jon Stewart's decade-long advocacy campaign was instrumental in the law's passage. VA has conducted toxic exposure screenings for eligible veterans and expanded the Airborne Hazards and Open Burn Pit Registry. Ongoing legal and policy work is addressing how hypertension (high blood pressure) — newly added as a presumptive condition — is rated and compensated given its near-universal prevalence in older veterans.

• PACT Act claims processing surge — 2 million+ approvals (2023-2025): As of early 2026, VA has processed approximately 2 million PACT Act-related disability claims, approving the majority. The burn pit and airborne hazard presumptions (covering veterans who served in Afghanistan, Iraq, and other locations after 1990) generated the largest claims volume. VA hired 52,000 additional staff to process the surge — a massive workforce expansion that DOGE subsequently reviewed as part of its VA staffing analysis. Processing times improved through 2024 but remain above the 125-day target for complex PACT Act claims involving rare cancers and multi-system conditions.
• Hypertension presumption controversy and rating challenges: The PACT Act added hypertension (high blood pressure) as a presumptive condition for Vietnam veterans, recognizing Agent Orange's connection to cardiovascular disease. Because hypertension is common in the general aging population and in the Vietnam-era veteran cohort, the presumption created rating challenges: VA must determine the degree of disability for a condition that ranges from well-controlled (0%) to severe (100%) based on medication requirements and functional impact. Veterans advocates have pushed for generous ratings; VA's ratings processes have been inconsistent across regional offices. The hypertension presumption alone may add $36 billion to VA benefits costs over 10 years.
• DOGE VA staffing review and PACT Act capacity (2025): DOGE's review of VA staffing — which had expanded significantly to handle PACT Act claims — created uncertainty about whether VA could maintain PACT Act processing capacity. VA Secretary Collins maintained that PACT Act claims processing staff were "mission critical" and shielded most from DOGE cuts; however, some administrative positions supporting claims processing were reduced. Veterans service organizations (VFW, American Legion, DAV) lobbied successfully to protect most of the PACT Act-dedicated workforce. The processing backlog that resulted from the PACT Act surge remains the VA's primary operational challenge.
• PACT Act toxic exposure registry and research: The PACT Act directed VA to expand the Airborne Hazards and Open Burn Pit Registry and conduct longitudinal research on toxic exposure health effects. VA is tracking approximately 400,000 enrolled registry participants and publishing research on burn pit exposure and respiratory disease outcomes. This registry data will inform future presumptive condition decisions for conditions where the science is still developing — including some cancers and neurological conditions that may not manifest for decades after service. The research infrastructure PACT Act funded is as important as the immediate benefits expansion for long-term veterans health policy.