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Field Guide3 min readUpdated April 2026

The PACT Act: What It Is, Who Qualifies, and How to File

The PACT Act added presumptive service connection for millions of veterans. No nexus letter required if you qualify. Here's how to check and file.

The PACT Act — Sergeant First Class Heath Robinson Honoring our Promise to Address Comprehensive Toxics Act — was signed into law in August 2022. It is the largest expansion of VA benefits in decades.

If you served near burn pits, were exposed to Agent Orange, or faced other toxic exposures during service, the PACT Act may entitle you to service connection without a nexus letter.

That last part matters: no nexus letter required for presumptive conditions. The VA presumes the connection. You document the exposure and the diagnosis — the legal link is assumed by law.

Who the PACT Act Covers

The PACT Act created presumptive service connection for veterans in three main exposure categories.

Post-9/11 Veterans — Burn Pit Exposure

If you deployed to Southwest Asia (Iraq, Afghanistan, Djibouti, Syria, and others) after August 2, 1990, you are presumed to have been exposed to airborne hazards and open burn pits.

Conditions covered include:

  • Constrictive bronchiolitis and obliterative bronchiolitis
  • Constrictive pericarditis
  • Any cancer not already on the VA presumptive list, if it manifests to a compensable degree

Vietnam-Era Veterans — Agent Orange

The PACT Act expanded the list of Agent Orange presumptive conditions. If you served in Vietnam, the Korean demilitarized zone, or certain other locations between January 9, 1962 and May 7, 1975, new conditions were added to the presumptive list including:

  • Hypertension
  • Monoclonal gammopathy of undetermined significance (MGUS)
  • Additional cancers identified by VA or the National Academies of Sciences

Radiation-Exposed Veterans

Expanded coverage for veterans exposed to ionizing radiation during service — including atmospheric nuclear testing and cleanup at Enewetak Atoll.

How to Check If You Qualify

Use our PACT Act Presumptive Checker — enter your service dates, deployment locations, and current conditions. The tool cross-references your inputs against the VA's presumptive lists and returns which conditions may qualify without a nexus letter.

How to File a PACT Act Claim

Filing is the same process as any VA disability claim — VA Form 21-526EZ — with one key difference: you do not need to submit a nexus letter for presumptive conditions.

What you do need:

  • Service records showing your deployment to a covered location
  • A current diagnosis of the condition you're claiming
  • Completed VA Form 21-526EZ with "presumptive service connection" noted

File an Intent to File today to lock your effective date while you gather documentation.

What If Your Condition Isn't on the Presumptive List

Not every condition linked to toxic exposure is presumptive. If you have a condition related to burn pit exposure or Agent Orange that isn't on the presumptive list, you can still claim it — but you'll need a nexus letter establishing the medical connection. The standard secondary claim process applies.

Our free nexus templates cover many toxic-exposure-linked conditions.

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