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The federal government produces thousands of procedural and policy manuals every year. The M-21 Manual stands out as notable because each year over 400,000 veterans file claims with the Veterans Benefits Administration for disability compensation, financial hardship pensions, vocational rehabilitation services, and burial benefits—with total program net outlays amounting to over $90 billion each year.

Many of those 400,000 veterans and family members, along with veterans service officers; veterans law attorneys; Board of Veterans Appeals attorneys and judges; legal scholars; and federal judges consult the M-21 Manual to better understand VA policies and procedures for all programs administered by the Veterans Benefits Administration. For example, from 1992 through 2019, the Board of Veterans Appeals cited the M21-1 Manual 113,029 times, and the Court of Appeals for Veterans Claims cited the Manual 4,034 times. In addition, over 100 scholarly articles, mostly in law review journals, have cited the M21-1 Manual. Mark D Worthen PsyD (talk) [he/him] 21:19, 6 September 2024 (UTC)[reply]