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DOE/EE RIN: 1904-AE46 Publication ID: Spring 2022 
Title: Test Procedures for Dehumidifying Direct-Expansion Dedicated Outdoor Air Systems 

Consistent with the requirements under the Energy Policy and Conservation Act (EPCA), as amended, the U.S. Department of Energy (DOE) is seeking to establish a Federal test procedure for dehumidifying direct-expansion dedicated outdoor air systems (DDX-DOASes) at 10 CFR 431.96. For covered equipment addressed in the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Standard 90.1, the DOE test procedure must be based upon the generally accepted industry testing procedure referenced in that industry consensus standard (42 U.S.C. 6314(a)(4)(A)). The statute further requires that each time the referenced industry test procedure is updated, DOE must amend the Federal test procedure to be consistent with the amended industry test procedure, unless there is clear and convincing evidence that the update would not be representative of an average use cycle or would be unduly burdensome to conduct (42 U.S.C. 6314(a)(4)(B)). Independent of that test procedure review obligation, EPCA also includes a 7-year-look-back review provision for covered commercial and industrial equipment that requires DOE to conduct an evaluation of each class of covered equipment to determine whether amended test procedures would more accurately or fully comply with the requirements that the Federal test procedure be representative of an average use cycle and not be unduly burdensome to conduct (42 U.S.C. 6314(a)(1)). In this test procedure rulemaking for DDX-DOASes, DOE is acting under its authority at 42 U.S.C. 6314(a)(4), and accordingly, it will propose and adopt a new Federal test procedure for this equipment. (The NOPR for this rule was mistakenly published in the Federal Register as RIN 1904-AD93 on July 7, 2021).

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)(4)   
Legal Deadline:
Action Source Description Date
Other  Statutory  Subject to ASHRAE trigger for certain equipment under 42 U.S.C. 6314(a)(4)   
Action Date FR Cite
Request for Information (RFI)  07/25/2017  82 FR 34427   
RFI Comment Period Ends  08/24/2017 
NPRM (Incorrectly Published as 1904-AD93)  07/07/2021  86 FR 36018   
NPRM Comment Period End  09/07/2021 
Supplemental NPRM  12/23/2021  86 FR 72874   
SNPRM Comment Period End  01/24/2022 
Final Action  06/00/2022 
Regulatory Flexibility Analysis Required: Yes  Government Levels Affected: None 
Small Entities Affected: Businesses  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:  
RIN Data Printed in the FR: Yes 
Related RINs: Previously reported as 1904-AD93 
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