Mo. Rev. Stat. § 335.075
335.075 Verification of licensure prior to hiring.
335.075. Verification of licensure prior to hiring. — 1. Before hiring a registered nurse, licensed practical nurse, or advanced practice registered nurse in Missouri, an employer shall verify that the applicant has a current, valid license to practice nursing under chapter 335 . This section shall not apply for employment which does not require the possession of a current, valid license to practice nursing.
2. Employers shall have a process in place to verify licensure status of each registered nurse, licensed practical nurse, or advanced practice registered nurse coinciding with the license renewal.
(L. 2010 H.B. 2226, et al.)