The U.S. Department of Energy (DOE) is updating the test procedures for compressors to correct errors and ensure calculations are accurate across different conditions, such as altitude. These changes include fixing formulas for efficiency calculations and updating the definition of "air compressor" to clarify that multiple compression elements are included. The updates align DOE procedures with industry standards and are designed to be more precise without adding extra testing burdens on manufacturers. The updated rules will be effective April 2, 2025, and mandatory for product testing by July 16, 2025.
Simple Explanation
The U.S. Department of Energy is fixing some rules for testing machines called compressors, which help put air into things. They want to make sure the tests work no matter where you are and to clear up what counts as a "compressor" so everyone follows the same rules.