Only one agency, either SSA or the RRB, can adjudicate a survivor claim, regardless
            of SSA insured status or RRB vested status. Only the RRB has the authority under the
            Railroad Retirement Act (RRA) to make the jurisdiction determination. For additional
            information on jurisdiction determination, see RS 01601.300. RRB must determine jurisdiction in all survivor claims when the deceased NH worked
            for the railroad. The Informational/Certified Earnings Record (ICER) or Disability,
            Railroad, Aliens, and Military Service (DRAMS) file may contain RRB’s jurisdiction
            determination.