The main purpose of this legislation, known as the "Protecting Local Control of Data Centers Act," is to ensure that state and local governments retain their authority over land use, zoning, siting, and permitting for data centers located on non-Federal land. This means that federal agencies cannot interfere with local decisions regarding where and how data centers are built and operated. Key provisions of this law include a clear prohibition against federal agencies overriding or bypassing state or local regulations related to data centers.