Veterans who find an old service record usually assume the best it can do is support a new claim dated today. 38 CFR 3.156(c) works differently. When relevant official service department records that existed at the time surface later, VA reconsiders the original claim, and a grant can carry the original effective date, sometimes decades back.
Why 3.156(c) matters
Most new evidence resets the clock to the date of your new claim. The regulation at 38 CFR 3.156(c) is a direct exception to that rule. When VA later receives relevant official service department records that existed but were not in your file when it first decided, VA does not treat it as a new claim. It reconsiders the original claim, and if it grants the benefit, the effective date can reach back to that original claim, or the date entitlement arose. That can mean years of additional back pay.
What counts as a service record
The key words are official and from the service department. Examples:
- Service treatment records that were missing from the original file.
- Personnel records (your service personnel file).
- Unit records, deck logs, morning reports, and after-action reports that document an event or exposure.
- Records reconstructed after the 1973 National Personnel Records Center fire, which destroyed millions of Army and Air Force files. When VA later locates or rebuilds those records, 3.156(c) can apply.
These differ from ordinary new evidence, such as a current doctor's letter or a buddy statement, which generally does not reset the clock the way 3.156(c) does.
Key exclusion under 3.156(c)(2)
There is a firm limit at 38 CFR 3.156(c)(2): the rule does not apply to records that VA specifically requested and that you failed to provide, if you had them and could have submitted them. The exception covers records that stayed out of your file through no fault of yours, not a second chance on evidence you held back.
How the effective date works
If VA reconsiders under 3.156(c) and grants, the effective date is set under 3.156(c)(3) as the date of the original claim or the date entitlement arose, whichever is later, read alongside the master effective-date rule at 38 CFR 3.400. That is why finding an old service record can be worth far more than its size suggests.
Steps to use 3.156(c)
- Get the records. Request your service records and your claims file. VA's records pages and the National Archives can help. Our guide on lost military records and the DD214 walks through where to look.
- Submit them with a clear statement. Use VA Form 21-4138 to explain that these are official service department records that existed at the time of the prior decision and were not in the file, and ask VA to apply 38 CFR 3.156(c) and reconsider the original claim.
- Note the duty to assist. Under 38 CFR 3.159, VA must make reasonable efforts to obtain federal records. If records were out there and VA did not get them, that supports reconsideration rather than a fresh start.
Worked example
A veteran's 2009 claim for a back condition was denied because the file held no in-service injury. In 2025, the veteran obtains a morning report and a line-of-duty record from the unit. Both existed in 2009 but were never associated with the file. VA reconsiders under 3.156(c), grants service connection, and assigns an effective date back to the 2009 claim, not 2025.
How 3.156(c) differs from CUE
Do not confuse this with a Clear and Unmistakable Error motion. 3.156(c) is about records that were missing. CUE is about an undebatable legal or factual mistake on the evidence that was there. The Supreme Court's George v. McDonough decision confirmed that CUE cannot be based on a later change in how a regulation is interpreted. If missing records are the issue, 3.156(c) is your tool. If a clear past mistake is the issue, see clear and unmistakable error motions.
When an old service record surfaces, ask
- Is it an official service department record, such as service treatment records, personnel files, unit records, deck logs, or morning reports, and not ordinary new evidence like a recent doctor's letter?
- Did the record exist at the time of the prior decision and stay out of the file through no fault of yours? 38 CFR 3.156(c)(2) excludes records VA specifically requested that you held back.
- Did you pair the submission with a clear statement on VA Form 21-4138 asking VA to apply 38 CFR 3.156(c) and reconsider the original claim?
- If granted, was the effective date set to the original claim under 3.156(c)(3), not the resubmission date?
- Is the real issue an undebatable mistake on evidence that was already in the file? That is a CUE motion, a different tool entirely.
Related on this site
- Lost military records and the DD214
- Effective dates, explained
- Clear and unmistakable error motions
- Supplemental claims, explained
Common questions
What does 38 CFR 3.156(c) actually do?
When VA later receives relevant official service department records that existed but were not in your file at the time of a prior decision, VA does not treat your submission as a new claim. It reconsiders the original claim, and if it grants, the effective date can reach back to that original claim, which can mean years of additional back pay.
What counts as a service department record?
Official records from the service itself: service treatment records missing from the original file, personnel records, unit records, deck logs, morning reports, after action reports, and records reconstructed after the 1973 National Personnel Records Center fire. A current doctor's letter or a buddy statement is ordinary new evidence and does not trigger this rule.
What is the exclusion in 3.156(c)(2)?
The rule does not apply to records VA specifically requested that you had and failed to provide. The exception exists for records that were missing through no fault of yours, not as a do over for evidence that was held back.
How do I ask VA to apply 3.156(c)?
Submit the records with a clear written statement, VA Form 21-4138 works, explaining that these are official service department records that existed at the time of the prior decision and were not in the file, and asking VA to apply 38 CFR 3.156(c) and reconsider the original claim. If granted, the effective date is the original claim date or the date entitlement arose, whichever is later.