The Yukon Legislative Assembly is the territory's unicameral legislature, located in Whitehorse. The Assembly consists of 19 Members of the Legislative Assembly (MLAs) elected from single-member constituencies. Unlike provinces, Yukon's authority derives from federal legislation (the Yukon Act) rather than the Constitution, though devolution agreements have transferred province-like powers. The Assembly operates on the Westminster parliamentary model with a Premier leading the government. Yukon was the first territory to achieve responsible government (1979) and has the most developed provincial-style governance among territories. The territory's small population means MLAs represent relatively few constituents, allowing close constituent relationships. Legislative sessions address territorial matters including health, education, resources, and municipal affairs within Yukon's jurisdiction.