Mo. Rev. Stat. § 194.500: Definitions.

As used in sections 194.500 to 194.512, the following terms mean:

(1) "Funeral director" , a person licensed as a funeral director pursuant to the provisions of chapter 333;

(2) "Funeral lead vehicle" or "lead vehicle" , any motor vehicle equipped with at least one lighted circulating lamp exhibiting an amber or purple light or lens or alternating flashing headlamps visible under normal atmospheric conditions for a distance of five hundred feet from the front of the vehicle. A hearse or coach properly equipped may be a lead vehicle;

(3) "Organized funeral procession" , two or more vehicles accompanying the remains of a deceased person from a funeral establishment, church, synagogue or other place where a funeral service has taken place to a cemetery, crematory or other place of final disposition, or a funeral establishment, church, synagogue or other place where additional funeral services will be performed, if directed by a licensed funeral director from a licensed establishment.