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DOE/EE RIN: 1904-AD87 Publication ID: Fall 2023 
Title: Energy Conservation Standards for External Power Supplies 

Under the Energy Policy and Conservation Act, as amended by the Energy Independence and Security Act of 2007 (EISA), Public Law 110-140, the U.S. Department of Energy (DOE) must conduct two rulemakings to evaluate whether to amend the standards in effect for external power supplies (EPS). DOE completed the first rulemaking in 2014, which, consistent with the statute, amended the statutorily prescribed standards set by EISA, see 79 FR 7846 (February 10, 2014). This proceeding will be the second (and final) rulemaking required under 42 U.S.C. 6295(u)(3)(D) and will evaluate whether to amend the current standards for external power supplies or issue a determination that no amendments to the current standards are required. DOE has proposed to adopt amended energy conservation standards for EPS and tentatively concluded that the proposed standards represent the maximum improvement in energy efficiency that is technologically feasible and economically justified, and that they would result in the significant conservation of energy. Once completed, this rulemaking will fulfill DOE’s statutory obligation under EISA to either propose an amended standard for this equipment or determine that the standards do not need to be amended. This requirement is separate from DOE's general obligation under 42 U.S.C. 6295(m) to periodically review its energy conservation standards once every six years. 

Agency: Department of Energy(DOE)  Priority: Other Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: Undetermined  Unfunded Mandates: Undetermined 
CFR Citation: 10 CFR 430.32   
Legal Authority: 42 U.S.C. 6295(u)(3)(D)(ii)   
Legal Deadline:
Action Source Description Date
Final  Statutory  42 U.S.C. 6295(u)(3)(D)(ii)  07/01/2021 
Action Date FR Cite
Request for Information (RFI)  05/20/2020  85 FR 30636   
RFI Comment Period End  07/06/2020 
RFI Reopening of Comment Period  07/23/2020  85 FR 44484   
RFI Reopening of Comment Period End  08/24/2020 
Availability of Preliminary Technical Support Document and notice of a webinar   02/25/2022  87 FR 10719   
Comment Period End  04/26/2022 
NPRM  02/02/2023  88 FR 7284   
NPRM Comment Period End  04/03/2023 
Final Action  05/00/2024 
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: Undetermined 
Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:  
RIN Data Printed in the FR: No 
Agency Contact:
Jeremy Dommu
Building Technologies Office, EE-2J
Department of Energy
1000 Independence Avenue SW,
Washington, DC 20585
Phone:202 586-9870