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DOE/EE RIN: 1904-AF01 Publication ID: Fall 2021 
Title: Energy Conservation Standards: Computer Room Air Conditioners and Air-Cooled, 3-Phase, Small Commercial Package Air Conditioning and Heating Equipment With a Cooling Capacity of Less Than 65,000 Btu/h 

This rulemaking for Computer Room Air Conditioners (CRACs) and 3-Phase Commercial Unitary Air-Cooled Air Conditioners and Heat Pumps Less Than 65,000 Btu/h is required under the Energy Policy and Conservation Act (EPCA), as amended, ASHRAE trigger provision at 42 U.S.C. 6313(a)(6)(A).  The U.S. Department of Energy (DOE) clarifies that this rulemaking originally started under RIN 1904-AD92, with the publication of a notice of data availability and request for information addressing CRACs on September 11, 2019 (84 FR 48006).  However, ASHRAE 90.1-2019 made additional revisions to the efficiency levels for CRACs and newly acted to amend the efficiency levels for 3-Phase Commercial Unitary Air-Cooled Air Conditioners and Heat Pumps Less Than 65,000 Btu/h.  Consequently, DOE is bundling these two equipment categories in the current rulemaking under RIN 1904-AF01.  (Note that the earlier RIN 1904-AD92 also addressed Dedicated Outdoor Air Systems, but since that equipment category saw no further ASHRAE action, DOE is moving forward with that equipment category separately under that RIN.)

Agency: Department of Energy(DOE)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: Undetermined  Unfunded Mandates: Undetermined 
CFR Citation: 10 CFR 431   
Legal Authority: 42 U.S.C. 6313(a)6)(A)    42 U.S.C. 6313(a)(6)(C)(i)   
Legal Deadline:
Action Source Description Date
Other  Statutory  Subject to ASHRAE trigger for certain equipment in 42 U.S.C. 6313(a)(6)(A)   
Other  Statutory  Subject to 6-year-look-back in 42 U.S.C. 6313(a)(6)(C)(i)   
Action Date FR Cite
Notice of Data Availability and Request for Information (RFI)  09/11/2019  84 FR 48006   
RFI Comment Period End  10/28/2019 
Notice of Data Availability and Request for Information (RFI)  09/25/2020  85 FR 60642   
RFI Comment Period End  11/09/2020 
NPRM  02/00/2022 
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: Undetermined 
Federalism: Undetermined 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Catherine Rivest
General Engineer
Department of Energy
Energy Efficiency and Renewable Energy
1000 Independence Avenue SW, Building Technologies Office, EE-5B,
Washington, DC 20585
Phone:202 586-7335