Hungary is steering the talks as current holder of the EU presidency – a role it hands over to Poland in July.
On Monday EU-Croatia negotiations on fisheries were completed.
Only four negotiating "chapters" remain – including tough judicial and competition issues. Croatia is on track to become the 28th EU state.
Later this week the European Commission plans to recommend completing accession talks with Croatia so that it can join the bloc in mid-2013, EU sources are quoted as saying.