The question about the NH's work in the RR industry on or after 01/01/37 allows us
            to determine whether RR compensation may be included in computing benefits. It also
            helps determine certification of benefits.
         
         In death cases, the information helps determine whether Railroad Board (RRB) or Social
            Security Administration (SSA) has jurisdiction of the claim. This determination of
            jurisdiction depends on whether or not the NH had a current connection with the railroad
            industry at death. These questions are part of the ADDB screen on MCS claims and propagate
            to the NHRR screen.