Mo. Rev. Stat. § 339.1155
Prior to placing an assignment for real estate appraisal services within the state of Missouri with an appraiser on the appraiser panel of an appraisal management company, the appraisal management company shall have a system in place to verify that the appraiser receiving the assignment holds a credential in good standing in the state of Missouri. Letters of engagement shall include instructions to the appraiser to decline the assignment in the event the appraiser is not geographically competent or the assignment falls outside the appraiser's scope of practice restrictions.
(L. 2010 H.B. 1692, et al.)