The law does not foresee any requirement to prove that a given list actually belongs to a national minority, apart from the declaration of its submitters and the opinion of the competent national minority council that may be eventually requested by the REC. For instance, it is not clear whether there is an obligation for all members of the list to belong to the national minority they claim to represent or what percentage of members must belong to that minority. Most notably, it is not clear by what means the members of the list can prove – or if they may be obliged to prove– that they belong to the national minority.