The Assembly of the Union ( Pyidaungsu Hluttaw) is the national-level bicameral legislature of Myanmar (officially known as the Republic of the Union of Myanmar) established by the 2008 National Constitution. The Pyidaungsu Hluttaw is made up of two houses, the Amyotha Hluttaw (House of Nationalities), a 224-seat upper house as well as the Pyithu Hluttaw, a 440-seat lower house (House of Representatives).