The Fusion Energy Act of 2024 clarifies how the federal government regulates fusion energy technology by amending existing nuclear energy laws. The bill creates a specific legal definition of "fusion machines" and requires the Nuclear Regulatory Commission to develop a streamlined regulatory framework specifically designed for fusion energy companies by December 31, 2027. Within one year of the bill's passage, the Commission must also study how to regulate mass-manufactured fusion machines, potentially using the Federal Aviation Administration's aircraft certification process as a model. The legislation affects fusion energy companies and the Nuclear Regulatory Commission, while the actual timeline for new rules extends to 2027 with no specific new federal funding allocated in the bill itself. This legislation aims to remove regulatory uncertainty that has slowed private fusion energy development by treating fusion technology distinctly from traditional nuclear reactors.