Voters’ lists are public registers with data on all naturalized persons who have the right to vote. Voters’ lists are a basic technical prerequisite for fulfilling the right to vote.

In the election monitoring campaigns held so far and in all election reports, the problem of voters’ lists not being updated was GONG’s main concern and was reported as an obstacle to the improvement of the election process. All Croatian citizens who turn eighteen should be added to the lists and all of those citizens who are deceased should be removed. However, in 2005 GONG compared the voters’ lists to 2001 year’s census data and found that the voters’ lists included approximately 400,000 more people.

Also, Croatian citizens who have the right to vote but who reside in Bosnia-Herzegovina represent an additional issue that has to be regulated in voters’ lists. During the Presidential Election of 2005 GONG discovered that those Croatian citizens could have easily voted twice and those who are deceased were marked as if they had voted in several polling stations in Bosnia-Herzegovina.

Therefore, GONG has been advocating for amending the Law on Voters’ Lists and updating the lists. In addition, cooperation with the Central State Administration Office in solving those problems was sought.

In cooperation with the OSCE Mission to Croatia, on December 11, 2006, GONG organized a roundtable debate on voters’ lists. The discussion included state officials and domestic and international experts, and GONG’s recommendations were presented.

During June and August 2007, GONG held several meetings with the representatives of the Central State Administrative Office for Public Administration and the Ministry of Foreign Affairs and European Integration in order to get more acquainted with the preparations for elections and with the implementation of the new Voters' Lists Act. On these meetings future modules of cooperation in relation to the Parliamentary Elections 2007, were arranged.

During the elections GONG cooperated with the SDUU sharing information about procedures and helping citizens to address their issues from lower levels of Administrative offices towards the SDUU. GONG also monitored SDUU's attempts to give precise information concerning voters' lists to the citizens.

Before and during the election campaign GONG also cooperated with the Ministry of Foreign Affairs and European Integration regarding the Ministry's organization and management of the elections abroad. Accordingly, GONG monitored the education of the civil servants for diplomatic and consular representative bodies as well as the Ministry's efforts to inform and educate the citizens.

During the pre-election campaign GONG educated and informed the citizens about the deadlines for checking the data in voters' lists, and also, two Mystery Call researches were conducted in order to verify the work of the State's Administrative Office and diplomatic and consular representative bodies. The results were presented to the public. The goal of the research was to check whether or not the procedures of previous registration of voters abroad and the procedure of temporary enlistment in voters' lists were being honored in order to evaluate how well the workers of authorized bodies are informed and to what extent the information on the previous registration and temporary enlistment in voters' lists are accessible to the citizens so that they could be warned if any problems were to arise. To GONG's knowledge, although the procedures were being honored in general, some problems and irregularities did arise because of the inadequate education of civil workers which, in the end, led to the fact that a certain number of citizens lost their right to vote.