 The use of the D'Hondt method may result in a higher effective threshold, depending on the district magnitude.The electoral law allows for parties and federations registered in the interior ministry, coalitions and groupings of electors to present lists of candidates.Parties and federations intending to form a coalition ahead of an election are required to inform the relevant Electoral Commission within ten days of the election call—fifteen before 1985—whereas groupings of electors need to secure the signature of at least one percent of the electorate in the constituencies for which they seek election—one-thousandth of the electorate, with a compulsory minimum of 500 signatures, until 1985—disallowing electors from signing for more than one list of candidates.