Changes the laws regarding cities of the fourth classification

HB 818 replaces all existing laws governing Missouri cities classified as "fourth class" with 40 new sections. It directly affects small municipalities by updating their governance structure, including how mayors, city council members (referred to as "alders"), and other officers are elected and serve. Key changes include allowing cities to extend or reduce boundaries with voter approval, modifying term lengths for elected officials (e.g., mayor terms could be set to 2-4 years), and clarifying requirements for police and financial officers. The bill streamlines fourth-class city operations by revising outdated provisions without introducing new policy initiatives.