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Consistent with the requirements under the Energy Policy and Conservation Act (EPCA), as amended, the U.S. Department of Energy (DOE) is examining whether to amend the current test procedures for variable refrigerant flow air conditioning and heating equipment, which are categories of commercial air conditioning and heating equipment found at 10 CFR 431.96. Because of this proceeding, DOE may propose and adopt new and amended test procedures for this equipment, or issue a determination that amendments to the current test procedures are not required. Once completed, this rulemaking will fulfill DOE’s statutory obligation to either propose amended test procedures for this equipment or determine that the existing test procedures do not need to be amended.