Donald Buchanan, Claimant-Appellant v. R. James Nicholson, Secretary of Veterans Affairs

PROST, Circuit Judge.

Donald Buchanan appeals from the decision of the Court of Appeals for Veter ans Claims (the “Veterans Court”) affirming a decision of the Board of Veterans’ Appeals (the “Board”) which denied Mr. Buchanan’s claim for service connection for a psychiatric disorder. Buchanan v. Nicholson, 19 Vet.App. 465 (VetApp. 2005). Because the Veterans Court accepted the Board’s legally erroneous interpretation of the statutory and regulatory provisions pertaining to a veteran’s ability to prove service connection through competent lay evidence, we vacate the Veterans Court decision and…