Mo. Rev. Stat. § 622.520: Substantial compliance, effect on rules and regulations of division, construction.

A substantial compliance with the requirements of this chapter shall be sufficient to give effect to all the rules, orders, acts and regulations of the division, and they shall not be declared inoperative, illegal or void for any omission of a technical nature in respect thereto. The provisions of this chapter shall be liberally construed with a view to the public welfare, efficient transportation services and substantial justice between patrons and carriers.