The M21-1: VA's Playbook for Processing Your Claim

The M21-1 is VA's claims-processing manual. It can help you understand the steps behind a decision and prepare better questions for an accredited representative.

Find the current manual

Start with VA's regulations and reference page. Its “Claims Adjudication Procedures Manual/Live Manual” link takes you to the current manual on KnowVA. That VA page also links to the regulations and federal statutes.

Manual sections can move. Search for the subject named in your decision letter, then record the section title, revision date and link you actually read. An old screenshot or section number may point to a different version.

Make a short reference sheet

You do not need to read the entire manual. Work from the issue in front of you:

1. Write down the decision or evidence question you want to understand.
2. Find the relevant manual entry through VA's live reference page.
3. Save its heading, date and any regulation it cites.
4. Note what is unclear or seems different from your decision letter.
5. Take that question and the decision letter to an accredited representative.

A useful question is: “Does this procedure apply to my claim, and what evidence would help address it?” A manual citation alone does not establish an award or a particular review outcome.

Know its limits

Do not treat the manual as interchangeable with a regulation. In Board appeals, the governing rule binds the Board to applicable statutes, VA regulations and precedential General Counsel opinions; it does not bind the Board to VA manuals. See 38 CFR § 20.105.

For a side-by-side explanation, read M21-1 vs 38 CFR. For help applying these references to your situation, start with VA's accredited-representative resources.

Reference links and the Board-manual distinction checked September 9, 2026. Check the date on the specific manual provision you use.