The documents listed below can be disregarded if discrepant  only  if the remaining evidence is sufficient to establish the DB. If a material element
            (month, first or second day, or year) of the DB is reflected only in a document which
            could otherwise be disregarded, the tolerance  cannot  be used.
         
         There must be at least two separate documents which meet the criteria of GN 00302.115-GN 00302.118 unless otherwise specified in C. below.
         
          Neither  material discrepancy development  nor  a written determination is required when one of these tolerances is used.