In times of emergencies, Sei were not held but an upper courtier who was waiting at the meeting would confirm this, and the Sangi (councilor) or Shonagon would ask the Benkan at the Katanashi-dokoro to attach the seal to the document and this procedure was called Katanashi shoin.
なお、緊急時には政が開かれず、会議が開かれる陣座に待機していた上卿がこれを確認した後で参議・少納言が結政所にいる弁官に請印を求める結政請印という手続もあった。