Assembly Bill 528 mandates the Group Insurance Board (GIB) to conduct studies assessing the potential costs and savings associated with both mandatory and voluntary participation of Wisconsin school districts in group health insurance plans offered by GIB. The bill requires GIB to collaborate with an actuary to evaluate the financial implications for school districts and current participants in these insurance plans. A written report detailing the findings of these studies must be submitted to the governor and the Joint Committee on Finance within six months of the bill's effective date.

Additionally, the bill creates a new section, 20.515 (1) (dm), in the statutes to establish a continuing appropriation for the funds necessary to conduct these studies. This section outlines the requirement for GIB to explore the financial impacts of mandatory participation by all school districts as well as the option for voluntary participation. The bill aims to provide a comprehensive analysis to inform future decisions regarding school district involvement in state group health insurance.