Mo. Rev. Stat. § 643.620: Commissioners, per diem allowed.

Commissioners appointed pursuant to section 643.610 shall receive for the time spent at meetings of the commission and in the performance of their duties as members of said commission a per diem allowance of twenty-five dollars regardless of whether such duties are performed or meetings are held within or without the state of Missouri. Such per diem shall be paid from amounts appropriated by the legislature for such purpose.