TERA
The most misunderstood and underrated path in the whole toxic-exposure system — and the one that reaches more veterans than the Gulf War and Vietnam combined. If your condition is not on the presumptive list, this is very often how a claim is still won.
Toxic Exposure Risk Activity, in plain English
A Toxic Exposure Risk Activity is any duty or activity during your service that likely exposed you to a toxic substance — and it is now a formal part of how the VA decides claims. Where a presumptive condition is granted automatically, TERA is the path for everything else: the conditions that are real and service-caused but are not on a list.
Here is the part almost no one understands: the PACT Act did not just create presumptive lists. It also ordered the VA to look at every veteran’s individual exposure history. That review — the TERA determination — applies to far more veterans than any single war-era presumption, because toxic exposure happened in motor pools, on flight lines, in fuel farms and in aging barracks across every branch and every decade.
Why TERA reaches more veterans than the Gulf War or Vietnam
Agent Orange and burn-pit presumptions are tied to specific places and specific years. TERA is tied to what you did — and toxic-exposure duties existed in every era of service, at bases all over the world, in peacetime and war alike. That is why the pool of veterans it can help is far larger than any one conflict.
It is not one war or one chemical
People hear “toxic exposure” and picture Agent Orange in Vietnam or burn pits in Iraq. TERA is broader than both. It is any documented toxic-exposure risk activity across your entire career — a motor pool, a firing range, a fuel farm, an aircraft, a chemical-storage yard, an old barracks full of asbestos and lead. That reaches veterans of every era, not just two wars.
It is a review, not a list
Presumptive conditions are a list — you are on it or you are not. TERA is a review of what you actually did and what you were actually around. Even when your diagnosis is not presumptive, the PACT Act now requires the VA to consider your individual exposure history and, where warranted, obtain a medical opinion.
It lives in your record already
Since the PACT Act, the VA builds a TERA determination into the claims process using your service records, your dates, your locations and your duties. Most veterans have never heard the term — yet a TERA finding may already be sitting in their file, unread and unused.
The everyday duties that count as toxic exposure
None of these require a combat deployment. If any describe your service, a TERA review may apply to you.
Motor pool, transportation and maintenance personnel exposed to fuels, solvents, degreasers and exhaust.
Aircraft and flight-line crews around jet fuel, hydraulic fluids and de-icing chemicals.
Firefighters and anyone near AFFF firefighting foam — a source of PFAS “forever chemicals.”
Supply, fuel-handling and chemical-storage personnel who moved or guarded hazardous material.
Anyone who lived or worked in older buildings and ships lined with asbestos and lead paint.
Range, ammunition and demolition personnel exposed to heavy metals, propellants and blast residue.
Why TERA matters even more for women veterans
The facts-found nature of TERA is exactly where women lose ground — unless the exposure is reconstructed properly.
Their job title hides the exposure
A woman’s MOS on paper rarely captures the extra duties she actually pulled — the details, the fill-ins, the “whatever the unit needed.” TERA is decided on what you did, so an exposure that never made it into your job title gets missed unless someone reconstructs it.
They were told they “weren’t in combat”
Countless women were waved off with “you weren’t on the front line, so you weren’t exposed.” Toxic exposure has nothing to do with a combat badge. It has to do with the air, water and chemicals around your duty station — and women shared every one of them.
Their exposure spans quiet, everyday duty
The most overlooked TERA exposures are not dramatic — they are the years in a shop, a warehouse, a fuel point or an aging barracks. Because it was routine, no one flagged it, and the veteran never thought to claim it.
Building a facts-found TERA claim
A presumptive claim is granted on a list. A TERA claim is won on evidence. Here is how the pieces fit together.
Reconstruct your exposure
List every base, ship, deployment and duty station with dates, and every job and extra duty that put you near fuels, solvents, smoke, asbestos, lead, radiation or contaminated water. Detail beats vague memory.
Get the TERA determination
The VA reviews your records to decide whether you had a qualifying toxic-exposure risk activity. Buddy statements and unit records fill gaps your personnel file leaves out.
Tie exposure to diagnosis
For a non-presumptive condition you need a medical nexus — an opinion that it is “at least as likely as not” your exposure caused the condition. The PACT Act requires the VA to help develop this where the record reasonably indicates a link.
File and document severity
File VA Form 21-526EZ, attend the C&P exam, and describe your worst days — not your best. The rating is set by how badly the condition limits you.
A won TERA claim pays exactly like any other
There is no discount for a facts-found claim. Once your condition is connected and rated, it pays on the same schedule as a presumptive one. These are 2025 estimates for a veteran with no dependents.
| Combined rating | Monthly (veteran alone) | Estimated yearly |
|---|---|---|
| Ten percent | $175.51 | ≈ $2,106 |
| Thirty percent | $537.42 | ≈ $6,449 |
| Fifty percent | $1,102.04 | ≈ $13,224 |
| Seventy percent | $1,759.19 | ≈ $21,110 |
| One hundred percent | $3,831.30 | ≈ $45,976 |
Rates are 2025 figures (effective Dec. 1, 2024) for a veteran with no dependents and are rounded estimates for illustration, not a promise of any specific award. Your actual rating and payment depend on your records, your exam, and any dependents — an accredited representative can estimate your true combined rating.
Check the PACT Act presumptive conditions first
Before building a facts-found TERA claim, make sure your condition is not already presumptive — if it is, the connection is automatic. See the top presumptive conditions, each with its own full page and rating breakdown.
See PACT Act conditionsOfficial toxic-exposure resources
Straight from the VA — toxic-exposure screening and claims.
Think a toxic-exposure duty applies to your service?
We focus on veterans the VA has already denied or under-rated. We do not take brand-new (initial) claims, and we do not take every case.
Guidance from a VA-accredited claims agent (#45147). Any figures are estimates that depend on your situation and the VA's decision — not legal or medical advice, and not the VA.