Mo. Rev. Stat. § 389.615

The division of motor carrier and railroad safety shall conduct a study to establish priorities for grade crossing closures and a plan for implementing grade crossing closures. The study is to be completed by January 1, 1994, and is not to be paid for from the grade crossing safety account. To promote the safety of railroad tracks at crossings, the division may employ additional track safety specialists, subject to appropriations, or available federal or private funding.