((a)) ** .—** If new and relevant evidence is presented or secured with respect to a supplemental claim, the Secretary shall readjudicate the claim taking into consideration all of the evidence of record.

((b)) ** .—**

((1)) If a claimant, in connection with a supplemental claim, reasonably identifies existing records, whether or not in the custody of a Federal department or agency, the Secretary shall assist the claimant in obtaining the records in accordance with .

((2)) Assistance under paragraph (1) shall not be predicated upon a finding that new and relevant evidence has been presented or secured.