In Styria, for example, no 4% or any other threshold requirement applies. Instead, a party must at least win one basic mandate (Grundmandat) in one of the four regional electoral districts (Wahlkreise); it may then aggregate its remaining votes from all four districts and participate on the allocation of the remaining mandates (Restmandate) in the second stage of the votes-to-seats conversion process. In the Styrian version of PR, the Wahlzahl in the second stage differs from the Wahlzahl that governs the district-per-district allocation of mandates in the first stage. In contrast to federal elections, the Wahlzahl is computed separately for each district. There is, therefore, inter-district variation in the number of votes a party needs to earn a basic mandate.