Assembly Bill 646 mandates the Department of Public Instruction (DPI) to contract an entity to conduct a comprehensive study of school districts in Wisconsin. The study will examine various aspects, including school district boundaries, potential consolidations, existing facilities, staffing levels, and the demographics of school-age children. The contracted entity is required to submit a detailed report to DPI, which will include recommendations for boundary changes, assessments of school facilities, population projections, and suggestions for consolidations that are efficient and viable. The report must also provide specific information about each recommended consolidation, such as estimated enrollment and the locations of existing school buildings.

Additionally, the bill requires DPI to request supplemental funding from the Joint Committee on Finance to support the study's implementation. The report generated from the study must be submitted to the legislature, ensuring that lawmakers are informed of the findings and recommendations. This initiative aims to enhance the efficiency and effectiveness of school districts across the state by evaluating their current structures and potential improvements.