Mo. Rev. Stat. § 387.414: TNC drivers to be independent contractors, not employees, when.

Except as provided in section 387.433, all TNC drivers shall be independent contractors and not employees of the TNC if all of the following conditions are met:

(1) The TNC does not prescribe specific hours during which a TNC driver must be logged into the TNC's digital network;

(2) The TNC imposes no restrictions on the TNC driver's ability to utilize digital networks from other TNCs;

(3) The TNC does not restrict a TNC driver from engaging in any other occupation or business; and

(4) The TNC and TNC driver agree in writing that the driver is an independent contractor with respect to the TNC.