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DOE/EE RIN: 1904-AE05 Publication ID: Fall 2023 
Title: Test Procedures for Water-Source Commercial Heat Pumps 

The Energy Policy and Conservation Act, as amended, (EPCA) requires the U.S. Department of Energy (DOE) to conduct a review of its test procedure for each covered class of covered equipment once every seven years to determine if amendments are needed. If DOE determines that amended test procedures would more accurately or fully comply with the requirements under 42 U.S.C. 6314(a)(2) and (3) (related to representativeness during an average use cycle and not being unduly burdensome to conduct), DOE must prescribe amended test procedures for that equipment. Otherwise, DOE must publish a notice regarding its determination that the test procedure does not need to be amended. DOE proposes to amend its test procedures for water-source heat pumps, with the main changes being ones to expand the scope of applicability of the test procedure, reference different industry standards than currently referenced, change to a seasonal cooling efficiency metric, and change the test conditions used for the heating metric. DOE has tentatively determined that the amended test procedure would produce results that are more representative of an average use cycle and more consistent with current industry practice without being unduly burdensome to conduct. 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 does not need to be amended.

Agency: Department of Energy(DOE)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 10 CFR 431   
Legal Authority: 42 U.S.C. 6314(a)(1)(A)   
Legal Deadline:
Action Source Description Date
Other  Statutory  Subject to 7-year-look-back in 42 U.S.C. 6314(a)(1)(A)   
Action Date FR Cite
Request for Information (RFI)  06/22/2018  83 FR 29048   
RFI Comment Period End  07/23/2018 
RFI Comment Period Extended  07/09/2018  83 FR 31704   
RFI Comment Period Extended End  09/21/2018 
NPRM  08/30/2022  87 FR 53302   
NPRM Comment Period End  10/31/2022 
Final Action  11/00/2023 
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: Undetermined 
Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Troy Watson
Supervisory General Engineer
Department of Energy
Energy Efficiency and Renewable Energy
1000 Independence Avenue SW, Building Technologies Office, EE5B,
Washington, DC 20585
Phone:240 449-9387