Mo. Rev. Stat. § 70.322
A public entity, cemetery or nonprofit organization may contract with any county, city, township, or any special road district for the use of such county's, city's, township's or special road district's equipment and personnel to repair or maintain roads of public entities, cemeteries or roads owned by nonprofit organizations, or to perform such other roadwork-related activities for such public entity, cemetery or nonprofit organization, if such public entity, cemetery or nonprofit organization is located within the boundaries of the county, city, township, or special road district. As used in this section, a nonprofit organization shall mean a 501(c)(3) organization as defined under the Internal Revenue Code and an organization in an area where there is no access to private services. Such contract shall be in writing and shall provide that:
§ 70.322, RSMo