"The Evidence Does Not Show Exposure": What VA Is Saying

What this denial is actually about

Presumptive exposure claims skip the nexus element: if you served at a recognized place during a recognized period and later developed a listed disease, VA presumes the link. 38 CFR §§ 3.307(a)(6), 3.309(e). The trade-off is that the location-and-date element has to be documented precisely.

When a decision says the evidence does not show exposure, the adjudicator searched the file for that documentation and did not find it. A DD-214 that lists a Vietnam Service Medal but no in-country dates, or a duty station recorded only at the parent command level, will produce this outcome even where the underlying service is not disputed.

Records that establish location and dates

• Official Military Personnel File (OMPF) — assignment history, transfer orders, and temporary duty travel, requested through the National Personnel Records Center or milConnect.
• Unit morning reports and organizational histories, which place a unit somewhere even when an individual record is silent.
• Navy deck logs (Record Group 24, National Archives) for offshore position and anchorage on specific dates.
• Flight and travel manifests, pay records showing hostile-fire or imminent-danger pay, and award citations naming a location.
• For Camp Lejeune, PACT Act burn-pit locations, and Thailand base service, the recognized locations and periods are defined by statute or regulation — the record must match those terms exactly.

Blue Water Navy service

Service in the offshore territorial sea of Vietnam within 12 nautical miles of the statutory demarcation line, between January 9, 1962 and May 7, 1975, carries the herbicide presumption under 38 U.S.C. § 1116A (Blue Water Navy Vietnam Veterans Act of 2019, Pub. L. 116-23); see also Procopio v. Wilkie, 913 F.3d 1371 (Fed. Cir. 2019) (en banc). VA also maintains a published list of vessels associated with herbicide exposure, which concedes qualifying service for the vessels and categories it names.

Which review lane fits

If new records exist and have not been filed, a Supplemental Claim is the lane built for that. If the records were already in the file and were overlooked, a Higher-Level Review lets a senior adjudicator find the error on the same record without new evidence.

After a decision, the review lanes are a Supplemental Claim with new and relevant evidence (VA Form 20-0995), a Higher-Level Review by a senior adjudicator on the same record (VA Form 20-0996), or a Board appeal (VA Form 10182). 38 CFR §§ 3.2500, 3.2601, 20.202. Which lane fits depends on whether the missing piece is evidence or reasoning.

Where these claims usually go wrong

• ×Submitting a personal statement about where you served without any record that corroborates the location or dates.
• ×Filing a Supplemental Claim with the same documents already in the file — duplicates are not new evidence.
• ×Assuming a service medal proves in-country or offshore presence; medals are awarded on criteria that do not always establish location.
• ×Missing that VA's recognized period for the location is narrower than the deployment you remember.

Frequently Asked Questions

References & sources

1. 38 CFR § 3.303 — Principles relating to service connection — Code of Federal Regulations
2. 38 CFR § 3.159 — VA's duty to assist — Code of Federal Regulations
3. 38 CFR § 3.2500 — Review of decisions (AMA lanes) — Code of Federal Regulations
4. Caluza v. Brown, 7 Vet. App. 498 (1995) — U.S. Court of Appeals for Veterans Claims · Sets out the three elements of service connection.