Energy Conservation Program: Test Procedures for Central Air Conditioners and Heat Pumps

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Energy 10 CFR Parts 429 and 430 [EERE-2022-BT-TP-0028] RIN 1904-AF49 AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy. ACTION: Final rule; further delay of effective date. SUMMARY: This document further delays the effective date of a recently published final rule amending the test procedures for central air conditioners and heat pumps. DATES: As of March 20, 2025, the effective date of the rule amending 10 CFR parts 429 and 430 published in the Federal Register at 90 FR 1224 on January 7, 2025, is delayed until May 20, 2025. The incorporation by reference approval published at 90 FR 1224 on January 7, 2025, is delayed to May 20, 2025. FOR FURTHER INFORMATION CONTACT: Dr. Pradeep Prathibha, U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Office, EE-5B, 1000 Independence Avenue SW, Washington, DC 20585-0121. Telephone: (240) 255-0630. Email: ApplianceStandardsQuestions@ee.doe.gov . Mr. Pete Cochran, U.S. Department of Energy, Office of the General Counsel, GC-33, 1000 Independence Avenue SW, Washington, DC 20585-0121. Telephone: (202) 586-4798. Email: peter.cochran@hq.doe.gov . SUPPLEMENTARY INFORMATION: On January 20, 2025, President Trump issued the “Regulatory Freeze Pending Review” memorandum published in the Federal Register on January 25, 2025 ( 90 FR 8249 ). This presidential action ordered all executive departments and agencies to consider postponing for 60- days t…