Mo. Rev. Stat. § 329.265
Until July 1, 1999, any person licensed in Missouri as a Class CH or CA cosmetologist pursuant to this chapter may be licensed as an esthetician without examination if such person applies to the state board of cosmetology and pays a fee, as established by the board. The state board of cosmetology shall notify, by October 1, 1998, by United States mail at their last known address, all persons licensed in Missouri as Class CH or CA cosmetologists of their rights as provided in this section to be licensed as an esthetician without examination. After July 1, 1999, any licensed cosmetologist shall be required to complete the required training of seven hundred and fifty hours and pass the required examination.
(L. 1995 S.B. 292, A.L. 1996 S.B. 930, A.L. 1998 H.B. 1601, et al.)