This joint resolution would reject a Department of Energy rule that sets new energy efficiency standards for commercial air conditioners and heat pumps. The rule, published in May 2024, would establish conservation requirements for air-cooled commercial package air conditioning and heating systems. If approved, Congress would disapprove the regulation, making it invalid and unenforceable. The resolution affects manufacturers of commercial HVAC equipment and businesses that purchase or operate these systems. This legislative action uses the Congressional Review Act, a process that allows Congress to overturn federal regulations within a specific timeframe without the need for presidential signature.