Mo. Rev. Stat. § 305.130: Unlawful to operate without an airman certificate and certificate of airworthiness.

It shall be unlawful for any person to operate any aircraft within this state in carrying a passenger or passengers, or any property, or in the prosecution of a business or commercial enterprise, or for instruction in the art of flying, without an* airman certificate for such purposes issued by the Federal Aviation Administration, and without a valid certificate of airworthiness for such aircraft issued by the Federal Aviation Administration.