Changes the composition of the St. Charles City-County Library Board of Trustees

SB 1144 changes the composition of the St. Charles City-County Library Board of Trustees to a 9-member board. The bill specifies how members are appointed based on population comparisons between the city and county: the county governing body appoints 4-5 members if the county is larger, or the city mayor appoints 4-5 members if the city is larger, with specific rules for counties between 400,000-500,000 residents starting in 2027. This bill directly affects the governance structure of the library system in St. Charles County, replacing separate city and county boards with a unified city-county board upon county governing body approval. The change takes effect after the county approves a petition for merging the library systems, without altering library services or funding mechanisms.