The "large-scale data center life cycle financial responsibility act" establishes a regulatory framework for large-scale data centers in Michigan, requiring these facilities to register with the state. The bill outlines a registration process that includes submitting an application, paying a tiered fee based on the data center's projected critical information technology load, and providing financial security to cover potential environmental and infrastructure costs. It also prohibits contracts that attempt to bypass the act's requirements and mandates fair compensation for construction workers. The legislation introduces a financial responsibility fund to support local governments in managing costs related to registered data centers and establishes civil sanctions for non-compliance.

Additionally, the bill grants the director authority to draw upon financial security to stabilize operations or decommission sites in cases of insolvency or abandonment. It sets conditions for imposing civil fines, with a maximum of $100,000 adjusted annually based on the Consumer Price Index. The department is responsible for maintaining a database of registered data centers and is authorized to create rules for implementing the act. The act will take effect 90 days after being enacted into law.