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DOE/EE RIN: 1904-AD34 Publication ID: Spring 2023 
Title: Energy Conservation Standards for Commercial Water Heating-Equipment  

The U.S. Department of Energy (DOE) is undertaking a rulemaking to amend energy conservation standards for commercial water heaters. Once completed, this rulemaking will fulfill DOE's statutory obligation under the Energy Policy and Conservation Act, as amended, (EPCA) to either propose amended energy conservation standards for commercial water heaters and hot water supply boilers (CWHs), or determine that the existing standards do not need to be amended. (Unfired hot water storage tanks and commercial heat pump water heaters are being considered in a separate rulemaking.) DOE must determine whether national standards more stringent than those that are currently in place would result in a significant additional amount of energy savings and whether such amended national standards would be technologically feasible and economically justified. DOE proposed to amend the standards for certain classes of CWH equipment for which DOE has tentatively determined there is clear and convincing evidence to support more-stringent standards. Additionally, DOE has proposed to codify standards for electric instantaneous CWH equipment from EPCA into the Code of Federal Regulations.

Agency: Department of Energy(DOE)  Priority: Economically Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: Yes  Unfunded Mandates: No 
CFR Citation: 10 CFR 429    10 CFR 431   
Legal Authority: 42 U.S.C. 6313(a)(6)(C)(i) and (vi)   
Legal Deadline:
Action Source Description Date
Other  Statutory  Subject to 6-year-look-back in 42 U.S.C. 6313(a)(6)(C)   
Action Date FR Cite
Request for Information (RFI)  10/21/2014  79 FR 62899   
RFI Comment Period End  11/20/2014 
NPRM  05/31/2016  81 FR 34440   
NPRM Comment Period End  08/01/2016 
NPRM Comment Period Reopened  08/05/2016  81 FR 51812   
NPRM Comment Period Reopened End  08/30/2016 
Notice of Data Availability (NODA)  12/23/2016  81 FR 94234   
NODA Comment Period End  01/09/2017 
Notice of NPRM Withdrawal  01/15/2021  86 FR 3873   
NPRM  05/19/2022  87 FR 30610   
NPRM Comment Period End  07/18/2022 
NPRM Comment Period Reopened  07/20/2022  87 FR 43226   
NPRM Comment Period Reopened End  08/01/2022 
Final Action  07/00/2023 
Regulatory Flexibility Analysis Required: Yes  Government Levels Affected: None 
Small Entities Affected: Businesses  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:   Public Comment URL:!docketDetail;D=EERE-2014-BT-STD-0042  
RIN Data Printed in the FR: Yes 
Related RINs: Related to 1904-AE39 
Agency Contact:
Julia Hegarty
Department of Energy
1000 Independence Avenue SW,
Washington, DC 20585
Phone:240 597-6737