By Sarah Jones, J.D., VA-Accredited Attorney
Since the PACT Act was signed on August 10, 2022, the VA has phased in expanded eligibility, added new presumptive conditions across burn pit, Agent Orange, and radiation pathways, and conducted toxic exposure screenings for veterans enrolled in VA healthcare. Major rule changes continued through 2024, 2025, and into 2026.
Why the PACT Act timeline matters to your claim
The Honoring our PACT Act of 2022 is not a single one-time change. It is a phased framework that the VA continues to build out through new presumptive lists, regulations, and procedural rules. The date you served, the date you filed a claim, and the date the VA added your condition to a presumptive list all interact to determine eligibility, effective dates, and back pay.
Understanding the timeline helps veterans and survivors recognise three things: whether they already qualify under a current presumptive, whether a recently added condition lets them refile a prior denial, and how the effective-date rules might capture earlier benefits than they expect. Below is a year-by-year summary; consult the VA, a VA-accredited representative, or a free VSO for guidance on your specific facts.
August 2022 — The PACT Act becomes law
President Biden signed the Honoring our PACT Act of 2022 (Pub. L. 117-168) on August 10, 2022. It is the largest single expansion of VA toxic exposure benefits in U.S. history, covering veterans of every era from Vietnam through the post-9/11 conflicts. The law expanded VA healthcare eligibility for millions of post-9/11 and toxic-exposed veterans and added presumptive conditions for burn pit, Agent Orange, and radiation exposure.
Equally important, the Act created a new framework for how the VA evaluates non-presumptive toxic exposure claims. It directed the Secretary to consider Toxic Exposure Risk Activities (TERA) and ordered new outreach and screening programs, recognising that many veterans had carried unrecognised exposure-related illnesses for decades.
Late 2022 — First wave of presumptive expansions and screenings
Within weeks of the signing, the VA began applying the new presumptive lists to pending and new claims. Hypertension was added to the Agent Orange presumptive list, opening eligibility for many Vietnam-era veterans who had been denied for years. The VA also rolled out the Toxic Exposure Screening — a quick yes/no exposure check offered to every enrolled veteran. The screening does not itself grant benefits but flags potential PACT-related conditions for follow-up.
The first wave of denials being re-examined under the new presumptive rules also began in late 2022. Veterans whose claims had been refused before the law passed were encouraged to file Supplemental Claims rather than assume the old answer still applied.
2023 — Accelerated eligibility for terminal and priority groups
Through 2023, the VA accelerated eligibility for veterans with terminal illnesses and certain priority groups, allowing immediate enrolment rather than waiting for the original phased schedule. The agency also clarified its internal processing rules — including how raters should treat claims pending on the date of signing and how to compute effective dates for newly added conditions.
Survivors saw movement too. The VA reopened a number of previously denied Dependency and Indemnity Compensation (DIC) claims where the veteran's cause of death was now recognised as presumptive. Several outreach programs targeted Vietnam-era widows specifically.
March 5, 2024 — Full eligibility opens to all PACT Act veterans
On March 5, 2024, the VA opened full PACT Act enrolment to all eligible veterans regardless of when they served — years ahead of the originally scheduled phase-in. Veterans who deployed in support of the Global War on Terror, Vietnam-era veterans with qualifying exposures, and many others became immediately eligible for VA healthcare on a presumptive basis.
This was the single largest healthcare expansion of the law. It also created a practical effect for disability claims: many veterans newly enrolled in VA healthcare obtained diagnostic workups that surfaced previously undocumented service-connected conditions.
October 2024 — Proposed TERA adjudication rule
On October 1, 2024, the VA published a proposed rule (RIN 2900-AR75) to formalise the toxic exposure adjudication framework implementing the PACT Act. The proposal describes how the agency would review non-presumptive conditions through a Toxic Exposure Risk Activity (TERA) determination — a structured analysis intended to give veterans without a presumptive condition a clearer pathway to service connection. As of this article's review date, finalisation status should be re-checked on the Federal Register before relying on specific provisions.
For practitioners, the proposed TERA framework is significant because it indicates how the VA intends to weigh exposure evidence in cases where a presumption does not apply. Veterans pursuing non-presumptive claims should ensure their record includes a clear exposure history, supporting medical literature, and a nexus opinion where appropriate.
January 2025 — Particulate-matter presumptives expanded
On January 10, 2025, the VA published a final rule (FR Doc 2024-31776) adding leukemias, multiple myelomas, myelodysplastic syndromes, and myelofibrosis as presumptive for veterans exposed to fine particulate matter in covered Southwest Asia, Afghanistan, Somalia, Djibouti, Syria, Egypt, Jordan, Lebanon, Yemen, and Uzbekistan service. The rule expands the haematologic cancer presumptions already created by the PACT Act.
Each expansion of a presumptive list is significant because it can open eligibility for veterans previously denied for the same condition, and it can give survivors of veterans who died from those conditions new DIC eligibility. Veterans and survivors should re-check the VA's current presumptive lists at VA.gov/PACT before assuming an older denial still controls.
2025–2026 — Continued rulemaking and refinement
Through 2025 and into 2026, the VA has continued to refine implementation, issue clarifying guidance, and adjudicate the backlog of toxic exposure claims filed in the surge after the law was signed. The agency also continues to study emerging exposure science, which may drive additional presumptive expansions in coming years.
Veterans should expect periodic changes and re-check the VA's presumptive lists if their condition was not previously covered. The PACT Act framework is, by design, intended to evolve as the underlying science evolves.
What this means for your claim
Veterans denied a toxic exposure claim before the PACT Act may now be eligible to refile under the expanded presumptive lists. Survivors of veterans who passed away from a now-presumptive condition may also have new eligibility for Dependency and Indemnity Compensation. Filing an Intent to File preserves the earliest possible effective date for back pay while a formal claim is prepared.
If you are unsure whether your condition is currently presumptive or whether you fall within a qualifying service location and time, the VA's website, a VA-accredited VSO, or an accredited attorney can help you confirm. Cross & York's team is available for a free case evaluation; you can also file directly at VA.gov at no cost.
Evidence that helps your PACT Act claim land
Even when a condition is presumptive, the VA still needs to confirm three things: that you are a covered veteran, that you have the diagnosed condition, and that the qualifying exposure or service window applies to you. A clean evidence package shortens decision time and reduces the chance of a deferred or split rating.
Veterans frequently underestimate how much their own treatment records contribute. A current diagnosis from a VA or private provider, with date of onset and severity, is usually the fastest way to move a claim from initial review to a rating decision.
- DD-214 and any deployment orders showing covered service location and dates
- Current diagnosis with ICD-10 code from a treating physician
- Lay statements from family or fellow service members describing onset and symptoms
- Prior VA decisions if you were denied before August 10, 2022
- Documentation of any toxic exposure screening you completed at the VA
Mistakes that delay or sink otherwise-strong PACT Act claims
Most denials we see at Cross & York are not about whether the law covers the veteran — they are about how the claim was filed. Filing the wrong form, missing the Intent to File window, or leaving the exposure narrative blank are all avoidable.
If your initial claim was decided before a presumptive expansion, do not assume the file is closed. The VA will not automatically re-rate older denials; you typically need to file a Supplemental Claim and reference the new presumption.
- Filing a new VA Form 21-526EZ when a Supplemental Claim (20-0995) is the correct vehicle
- Not submitting an Intent to File (21-0966) before the formal claim, which can cost months of back pay
- Leaving the exposure narrative section blank because the condition is 'already presumptive'
- Skipping the Toxic Exposure Screening at the VA medical center
- Assuming a single denial closes the door — most PACT Act denials are appealable or refileable
How Cross & York approaches a PACT Act review
When we open a PACT Act case, our first step is a timeline reconciliation: we line up the veteran's service dates, every prior VA decision, every diagnosis date, and every change to the presumptive list. That overlay almost always reveals at least one missed eligibility window or back-pay opportunity.
From there, we either build the initial claim, file a Supplemental Claim citing the new presumption, or pursue an appeal under the Appeals Modernization Act — whichever route preserves the earliest effective date and the strongest evidentiary record. Veterans always retain the right to file directly at VA.gov or to work with a free VSO.
Frequently asked questions
When was the PACT Act signed into law?
August 10, 2022. Pub. L. 117-168.
Has full eligibility opened to all veterans?
Yes — the VA opened full PACT Act eligibility on March 5, 2024, ahead of the originally scheduled phased rollout.
Can I refile a claim that was denied before the PACT Act?
Often, yes. If your condition is now presumptive, you may file a Supplemental Claim with notice of the new law. Outcomes depend on individual facts.
Does the timeline still matter once I am enrolled?
Yes. Future presumptive additions can open new eligibility or trigger reopening of earlier denials, so it is worth re-checking the VA's lists periodically.
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Last reviewed by Sarah Jones, J.D., VA-Accredited Attorney. Content reviewed against VA.gov and Federal Register sources.