It is normal that the vast majority of the countries allow voters to challenge inaccuracies on voter lists as they are primarily concerned by such potential inaccuracies. This is in line with the Code of good practice in electoral matters underlining that “there should be an administrative procedure – subject to judicial control – or a judicial procedure, allowing for the registration of a voter who was not registered”. The Code of good practice does not mention the candidates as a potential category entitled to challenge such inaccuracies. Nonetheless, a small number of countries also allow candidates to challenge potential mistakes, which is welcome, provided that these same countries also allow voters to challenge voter lists. The capacity for requesting such corrections may be restricted to electors registered in the same constituency or at the same polling station, as underlined by the Code of good practice in electoral matters.