15.—(1) The registration officer must retain every notice and declaration made under article 14 and must display a true copy of the notice in a conspicuous place for a period of seven consecutive days preceding the issuing of a certificate of no impediment.
(2) A registration officer may request any further information from N which the registration officer considers to be relevant to the decision whether to issue a certificate of no impediment.
(3) Where an application is made in accordance with article 14, the registration officer must issue a certificate of no impediment unless the registration officer considers there is reason to believe that there would be an impediment to the marriage taking place if it were to take place in England and Wales, Scotland or Northern Ireland.