The National Assembly (Khmer: រដ្ឋសភា; Rotsaphea) is one of the two houses (chambers) of the Parliament of Cambodia. It is referred to as the lower house, with the Senate being referred to as the upper house.
The National Assembly is an elected body consisting of 123 members known as Members of Parliament (MPs). Members are elected for five-year terms by proportional representation, using provinces as constituencies of 1 to 18 members, and the D'Hondt method of seat distribution. A political party must secure 62 seats to obtain and preserve a majority.
The National Assembly is headed by the President.
Source: Wikipedia (d.d. December 8th 2017)