BRUSSELS, Belgium — The European Union said Thursday it does not want any more national-level bans on social media before a pan-European law is approved, as it blocked draft rules put forward by Austria. Under EU law, member states must notify the European Commission to ensure their bills do not break the bloc's rules. Austria wanted to ban children under 14 from social media, but the EU said no. "The commission has decided to postpone for 12 months any draft national laws overlapping with the future harmonized rules," EU spokesman Thomas Regnier said. The European Commission last month proposed to ban children under 13 from social media, and permit only limited, supervised access until the age of 15. The EU believes allowing countries to move ahead with national laws would divide the bloc, creating varying age-limits among member states. Brussels also fears EU countries will not rush to pass the bloc-wide law if they have their own country-level rules in place. "We need to now focus on the negotiations of the EU Kids Act and to ensure an effective enforcement of our rules," Regnier said