Mo. Rev. Stat. § 327.131: Applicant for license as architect, qualifications.

Any person may apply to the board for licensure as an architect who is over the age of twenty-one, has acquired an accredited degree from an accredited degree program from a school of architecture, holds a certified Intern Development Program (IDP) or Architectural Experience Program (AXP) record with the National Council of Architectural Registration Boards, and has taken and passed all divisions of the Architect Registration Examination.