Modifies and creates new provisions relating to water resources

This bill requires major water users in Missouri to file an official registration document with the state division before withdrawing or diverting water from sources like wells, lakes, or streams. The registration must include specific details such as the user's contact information, the location and type of water source, the amount of water used, and the land where the water will be applied, with limited exceptions for water pumped from mines and quarries. Information gathered from these filings will generally remain confidential, but the state may share aggregate data by county or release specific details if ordered by a court. The law allows current major users to continue operating while they submit their required documents during a designated filing period.