Mo. Rev. Stat. § 67.042
The term "increasing" as used in Section 22 of Article X of the Constitution of the State of Missouri when referring to any license or fee of any county or other political subdivision does not mean adjustments in the level of any license or fee necessary to maintain funding of a service, program or activity which was in existence on November 4, 1980, or which was approved by a vote of the people subsequent to November 4, 1980. A statement of the costs necessary to maintain the funding of such service, program or activity shall be prepared and shall indicate the service, program or activity supported by the license or fee. The statement and work papers related thereto shall be a public record and subject to examination pursuant to chapter 610.
§ 67.042, RSMo