15. The duplicate of a register which has not already been handed over to the clerk of the Superior Court shall be handed over without delay to the registrar of civil status. The other copy is retained by its holder or, if not, is handed over to the registrar of civil status.
Where only one copy of a register has been kept, it shall be handed over to the registrar of civil status, as shall any register held by a clerk. The registrar of civil status authenticates any register which has not already been authenticated.