Constitution Drafting Assembly of Thailand (Thai: สภาร่างรัฐธรรมนูญแห่งราชอาณาจักรไทย; RTGS: Sapha Rang Ratthathammanun Haeng Ratcha Anachak Thai), or, in brief, CDA (Thai: สสร.), is a legislative body in Thailand bearing the duty to draw up a permanent Constitution of the Kingdom of Thailand. This kind of Assembly has usually been established after a military junta seized power in the country or by reason of the need to solve political crises in the country. The Constitution of the Kingdom of Thailand, BE 2492 (1949) was the first constitution having been prepared by the CDA.