Modifies and establishes provisions relating to school libraries

HB 3311 establishes standards for Missouri school libraries, requiring districts to adopt policies protecting access to library resources and preventing censorship. It defines key terms like "school librarian" and mandates that libraries promote free expression, support academic standards, and prohibit removal of materials for reasons like political views or author background. The bill creates a specific process for reviewing challenges to library materials, including a committee with diverse members, keeping challenged items available during review, and banning removal for "doctrinal or partisan reasons." It also prohibits retaliation against library staff who follow this review process and prevents repeated challenges to the same material within four years. This law directly affects Missouri public school districts, their library programs, and students' access to information.