G/TBT/N/USA/1747  
8 July 2021  
(21-5401) Page: 1/2 
Committee on Technical Barriers to Trade  Original:  English  
 
  
NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member:  UNITED STATES OF AMERICA   
If applicable, name of local government involved (Article 3.2 and 7.2):   
2. Agency responsible:  Office of Energy Efficiency and Renewable Energy (OEERE), 
Department of Energy (DOE) [1775]  
Name and address (including telephone and fax numbers , email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification shall be indicated if different from above:   
Please submit comments to: USA WTO TBT Enquiry Point, Email: usatbtep@nist.gov  
3. Notified under Article 2.9.2 [X], 2.10.1 [   ], 5.6.2 [X ], 5.7.1 [   ], other :  
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provided in addition, where applicable):  Direct 
expansion -dedicated outdoor air systems; Terminology (principles and coordination) 
(ICS 01.020), Quality (ICS 03.120), Environmental protection (ICS 13.020), Test 
conditions and procedures in general (ICS 19.020), Installations in buildings (ICS 91 .140)  
5. Title, number of pages and language(s) of the notified document:  Energy 
Conservation Program: Test Procedure for Dehumidifying Direct Expansion -Dedicated 
Outdoor Air Systems (43 page(s), in English)  
6. Description of content:  Notice of proposed rulemaking and request for comment - The 
U.S. Department of Energy (DOE) is proposing to establish definitions for "direct 
expansion -dedicated outdoor air systems" (DX - DOAS or DX -DOASes) and "dehumidifying 
direct expansion -dedicated outdoor air systems" ( DDX-DOAS or DDX -DOASes). 
DX-DOASes are a category of small, large, and very large commercial package air 
conditioning and heating equipment under the Energy Policy and Conservation Act 
(EPCA), as amended. In addition, DOE is proposing to establish a test p rocedure to 
measure the energy efficiency of DDX - DOASes, which aligns with the most recent version 
of the relevant industry consensus test standards for DDX -DOASes, with certain minor 
modifications. Lastly, DOE is proposing to add supporting definitions, energy efficiency 
metrics for dehumidification and heating modes, and provisions governing public 
representations as part of this rulemaking. DOE welcomes written comment from the 
public on any subject within the scope of this document (including topics no t specifically 
raised in this proposal), as well as the submission of data and other relevant information.  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Protection of the environment; Quality requirements  G/TBT/N/USA/1747  
 
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  8. Relevant documents:   
• 86 Federal Register (FR) 36018, 7 July 2021; Title 10 Code of Federal Regulations 
(CFR) Parts 429 and 431:  
https://www.govinfo.gov/conten t/pkg/FR -2021-07-07/html/2021 -13773.htm  
https://www.govinfo.gov/content/pkg/FR -2021-07-07/pdf/2021 -13773.pdf  
This notice of proposed rulemaking and request for comment is identified by Docket 
Number EERE -2017-BT-TP-0018. The Docket Folder is available from Regulations.gov at 
https://www.regulations.gov/docket/EERE -2017-BT-TP-0018/document  and provides 
access to primary and supporting documents as well as comments received. Documents 
are also accessible from Regulation s.gov  by searching the Docket Number. WTO Members 
and their stakeholders are asked to submit comments to the USA TBT Enquiry Point . 
Comments received by the USA TBT Enquiry Point from WTO Members and their 
stakeholders will be shared with the regulator and will also be submitted to the Docket  
on Regulations.gov if received within the comment period.  
9. Proposed date of adoption:  To be determined  
Proposed date of entry into force:  To be determined  
10. Final date for comments:  7 September 2021  
11. Texts available from:  National enquiry point [ ] or address, telephone and fax 
numbers and email and website addresses, if available , of other body:   
https://members.wto.org/crnattachments/2021/TBT/USA/21_4548_00_e.pdf