Bhutan does not have a written constitution or organic laws. The 1907 document submitted by the monastic and government leaders was an agreement only to establish an absolute hereditary monarchy. Bhutan's only legal or constitutional basis is the 1953 royal decree for the Constitution of the National Assembly. The 1953 constitution set forth eighteen succinct "rules" for the procedures of the National Assembly and the conduct of its members. The May 1968 revision reiterated and elucidated some of the eighteen rules but revised others. Beginning in 1969, the powers of the speaker of the National Assembly were strengthened, and the Druk Gyalpo's veto power was eliminated.

Data as of September 1991