At the national level, Fijian citizens of Rotuman descent elect one representative to the Fijian House of Representatives, and the Council of Rotuma nominates one representative to the Fijian Senate. Rotuma is also represented in the influential Great Council of Chiefs by three representatives chosen by the Council of Rotuma. For electoral purposes, Rotumans were formerly classified as Fijians, but when the Constitution was revised in 1997–1998, they were granted separate representation at their own request. (The majority of seats in Fiji's House of Representatives are allocated on a communal basis to Fiji's various ethnic groups) In addition, Rotuma forms part (along with Taveuni and the Lau Islands) of the Lau Taveuni Rotuma Open Constituency, one of 25 constituencies whose representatives are chosen by universal suffrage.