The Initiative have called on Prime Minister Zoran Milanovic to meet with them even before that date to discuss their demands, said its president Tomislav Josic.
The Initiative told the government that it must respect Article 8 of the constitutional law on national minorities' rights and Article 16 of the Constitution, and said the 2011 population census in Vukovar was "unrealistic and falsified".
The Initiative demands that the government urgently stop all investigations and proceedings against Initiative members, war veterans and civilians suspected of taking down bilingual signs in Vukovar, and the adoption of a decision on a moratorium on the application of the constitutional law on national minorities' rights until the next population census.
The Initiative also demands that Vukovar be proclaimed a place of special reverence and the alignment of the constitutional law on national minorities' rights with European standards so that it is applied if a minority accounts for more than 50 per cent of an area's population.
The Initiative also wants a report from the State Prosecutor's Office on the prosecution of war criminals for crimes committed in Vukovar in 1991, an indictment to be filed against the former Yugoslav People's Army for the excessive shelling of Vukovar, and proceedings to be launched in Croatia and Serbia to trace persons gone missing in Vukovar during the war.