38 C.F.R. § 20.403
Upon the filing of a Notice of Disagreement in a simultaneously contested claim, all interested parties and their representatives will be furnished a copy of the substance of the Notice of Disagreement. The notice will inform the contesting party or parties of what type of review the appellant who initially filed a Notice of Disagreement selected under § 20.202(b), including whether a hearing was requested.
(Authority: 38 U.S.C. 7105A)