Mo. Rev. Stat. § 327.612
Any person who has attained the age of twenty-one years, and has a degree in landscape architecture from an accredited school of landscape architecture and has acquired at least three years satisfactory landscape architectural experience after acquiring such a degree may apply to the board for licensure as a professional landscape architect.
(L. 1989 H.B. 190, et al. § 6, A.L. 2001 H.B. 567, A.L. 2014 S.B. 809, A.L. 2020 H.B. 2046)