The Senate is the upper chamber of the Congress of Nava, the other being the House of Representatives. The Senate consists of three delegates called Senators elected from each province, for a total of 39 voting members (there is also one non-voting delegate from each of the four special regions, giving 43 total members). Navan Senators have terms of six years, and every two years there is an election for one Senator from each province.
The structure of the Navan Senate is similar to the U.S. Senate, which the founders of Nava directly took inspiration from when creating the nation's political system after its independence in 1827. Though, in the U.S. Senate there are only two delegates from each electorate and thus each biannual election does not include all electorates, while in Nava all electorates are represented by elections each cycle.
Elections for the Senate usually take place on the second Saturday of June, at the same time as elections for the House of Representatives and (every second cycle) the Presidency.