 On 30 November 2006, the Government adopted the "Memorandum of Agreement between the Republic of Montenegro and the Republic of Serbia on Consular Protection and Services to the Citizens of Montenegro".By this agreement, Serbia, through its network of diplomatic and consular missions, provides consular services to the Montenegrin citizens on the territory of states in which Montenegro has no missions of its own.On 1 January 2010, the Government officially invalidated all non-biometric Montenegrin passports, even if the expiry date was beyond 1 January 2010.