formed. Accounting Chamber, is tasked with controlling the implementation of the Union State budget. It consists of 11 members appointed for a period of 6 years from among the citizens of the member states who have experience in control and audit who are appointed by the Parliament of the Union State on the proposal of the Council of Ministers. The Accounting Chamber establishes its own regulations, which are approved by the Council of Ministers. Language The official languages of the Union State are the state languages of the participating states. Russian is used as a working language in the common organs of the Union State. Developments Shortly after its inauguration, both member states seemed to have lost their enthusiasm for the Union, with first Russia, and then Belarus, restoring customs controls along their common border in 2001, effectively suspending the customs union until it was restored in 2010. Plans had also been set in motion to implement a common currency across the Union, but these have been postponed several times. On 16 November 2010, it was announced by the Union State website that the Constitutional Act was 99% ready. Common currency Belarusian President Alexander Lukashenko promised to introduce a common currency on 1 January 2004. The currency was not introduced, and the plan was pushed back by one year. On 1 January 2005, the Union State again failed to introduce a common currency, and it was again postponed by one year, which, in 2006, happened once again. During a press-conference in Minsk on 2 February 2006, Pyotr Prokopovich, chief of the National Bank of Belarus, announced that a "common currency might be introduced in 2007". This, however, failed to occur in 2007. The National Bank of the Republic of Belarus announced that, starting in 2008, the Belarusian rubel would be tied to the United States dollar instead of the Russian rouble. Citizenship and freedom of migration Union State grants citizenship to citizens in both states meaning that every citizen of the Russian Federation and every citizen of the Republic of Belarus is at the same time a citizen of the Union with the guaranteed right to move and reside freely within the territory of the other party, allowing Belarusian citizens to travel freely in Russia and have the right to settle there to work or study, and vice versa including possession, use and disposal of property on the territory of