The examiner is supposed to be told about your exposure. When that handoff fails, denials happen for a paperwork reason, not a medical one. Here is how these two documents work, how they help, and exactly what to check if you were denied.
A screener is not ILER. A screening is not a C&P exam. A TERA concession is not a nexus. Keep them separate — and audit the exact words VA used.
Individual Longitudinal Exposure Record
A secure DoD–VA system that consolidates occupational and environmental exposure data for authorized clinical, research, and claims users. It may contain deployment, duty, registry, monitoring, and occupational records.
Missing entry ≠ proof no exposure occurred. Historical monitoring and source systems can be incomplete.
Toxic Exposure Risk Activity finding
An adjudicative finding about participation in a toxic exposure risk activity. Read whether it concedes a specific substance, only an activity, dates, route, or duration.
TERA conceded ≠ nexus conceded for every non-presumptive diagnosis.
Toxic exposure screening
A brief health-care interaction — generally five to ten minutes — to identify concerns and connect veterans with care or resources.
Not ILER. Not diagnostic. Not a nexus opinion. Not required before filing. Not compensation proof.
The handoff that decides your claim
Your exposure has to travel from the battlefield or the flight line all the way to the examiner’s desk. TERA and ILER are the vehicles that carry it there. When the chain holds, the examiner weighs your exposure on the merits. When a link breaks — the duty was never captured, the exposure was left out of the exam request, or the examiner was simply never told — the claim can be denied for a reason that has nothing to do with your health.
The examiner can only weigh what the exam request puts in front of them. If your exposure never made the handoff, no amount of medical truth fixes it — the paperwork does.
Interactive
You are exposed in service
The same exposure happens. What matters next is whether the record work captures it.
Captured in the record (TERA + ILER)
The duty was informal, temporary, or historical — so it never made it into the source systems.
Written into the C&P exam request
Your exposure is left out of the exam request the examiner actually receives.
The examiner reviews and weighs it
The examiner is never told — or overlooks it — and never weighs your toxic exposure at all.
The decision
Denial — not because you were not exposed, but because the examiner was never made aware.
When there is a current disability, evidence of TERA participation, and insufficient evidence to grant, VA generally must obtain an examination and opinion on whether the disability is at least as likely as not related to the TERA, subject to statutory exceptions.
Presumptive exposure
A statute or regulation presumes exposure from qualifying service. Prove the specified service facts and listed diagnosis.
Facts-found exposure
Records, ILER material, duties, location, unit history, environmental reports, and competent lay evidence establish an actual risk activity or hazard pathway.
Where these two records go wrong
None of these are medical findings that your exposure was harmless. Every one is an auditable paperwork failure — and every one can be challenged.
The reviewer looks at your primary job code and stops there — ignoring the actual tasks, details, and duties that put you near the hazard.
Temporary duty, spill response, base cleanup, and historical exposure often never reach the source systems that feed ILER, so they appear "unverified."
Your documented exposure is not written into the examination request the examiner actually receives — so it is never put in front of them.
Even when it is in the file, a rushed examiner is never told or does not weigh it — and the opinion answers a question you never asked.
The opinion discusses burn pits but ignores solvents, diesel, dust, or pesticides — failing to weigh total and synergistic combined exposure.
The absence of an ILER entry is treated as evidence that no exposure happened, rather than a limit of an incomplete historical record.
A five-minute toxic-exposure screening is treated as if it were an ILER record, a C&P exam, or a nexus opinion. It is none of those.
The written decision quietly narrows or contradicts what the TERA memorandum actually conceded — without saying so in plain words.
Context, not a scare statistic. As of November 2023, a GAO review reported roughly 17,321 ILER accounts, with about 83% held by VBA claims staff, and recommended stronger goals for how the system is used. That is a measure of who has access — not an error rate. The point: this system is used in adjudication, so what it does and does not say about your service matters.
If you were denied, start here
Request a copy of your claim file and look for two things: a TERA memorandum and an ILER report or summary. Then ask the hard question — are they actually there, and are they correct? If the TERA memo is missing, if the ILER record leaves out your real duties, or if your exposure was never written into the exam request, that is often the reason a claim was denied. It is also exactly the kind of error that can turn a denial into a grant.
A missing or incorrect TERA memo or ILER record can be the difference between a denial and a win. General information — not legal advice. We are not the VA.
This is the disciplined sequence an accredited agent follows to rebuild the exposure record and confront each inaccurate premise with the exact contrary evidence.
Obtain the TERA memorandum, ILER report or file summary, exam request, opinion, service records, and decision evidence list.
Separate “no presumptive exposure,” “no ILER entry,” “no TERA,” and “TERA conceded but nexus negative.”
Correct branch, component, unit, dates, deployments, ship, installation, and temporary duty.
Add actual task evidence beyond the primary MOS.
Overlay maps, environmental records, unit histories, logs, and witness statements.
Identify inhalation, ingestion, dermal, wound, or embedded-fragment route.
Explain why informal duty, cleanup, spill, or historical exposure may be missing from source systems.
Compare the examination request with whether the opinion addressed total and synergistic combined exposure.
Point to each inaccurate premise with the exact contrary record.
Choose the review lane based on whether new evidence is needed or a duty-to-assist/legal error occurred.
No verified public statistic in the underlying research shows what percentage of TERA memoranda are negative. This site does not claim “most” or any specific rate. It focuses on auditable failure points: incomplete service data, MOS-only analysis, missing tasks and locations, source-record limits, and opinions that ignore combined exposure.
VA-Accredited Claims Agent #45147
Tell an accredited agent what happened. We review your situation first and tell you honestly whether we can help — before anyone signs anything.
An accredited agent personally reviews every request — we’ll reach out within 48 hours.