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 May 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, which was delayed at 90 FR 9001 (Feb. 5, 2025) and 90 FR 13052 (March 20, 2025), is further delayed until July 7, 2025. The incorporation by reference approval published at 90 FR 1224 on January 7, 2025, which was delayed at 90 FR 9001 (Feb. 5, 2025) and 90 FR 13052 (March 20, 2025), is further delayed to July 7, 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 pub…