Hall v. McDonough, No. 19-8717 (Decided October 18, 2021); The particular form a claimant submits—correct or otherwise—has no bearing on the Board’s jurisdiction to hear an appeal. Although VA can require a claimant to fill out a particular form and can dismiss nonconforming or untimely filings in appropriate circumstances, none of this affects the Board’s jurisdiction to hear appeals of veterans benefits decisions. Only Congress (or the Constitution) can set the parameters for jurisdiction, so an agency can neither expand nor limit its own jurisdiction through regulation. And because there is no indication that Congress intended to limit the Board’s jurisdiction to cases where veterans fill out the correct form, we reverse the Board’s finding that it lacked jurisdiction and remand for further development.;