Mo. Rev. Stat. § 389.993: Rules and regulations, hearings required — must conform with federal standards — how amended.

1. Before formulating such rules and regulations, the division of motor carrier and railroad safety shall conduct hearings and invite participation of interested groups. These groups may make suggestions relating to the minimum standards to be embodied in the rules and regulations. Any rules and regulations formulated shall not be in conflict with federal standards on the same subject matter, except as permitted under the Federal Railroad Safety Act of 1970, or any amendments thereto.

2. The division may amend the rules and regulations at any time upon its own motion or upon complaint by an individual or group, in the same manner as it adopts other rules and regulations.