G/TBT/N/USA/1640  
25 August 2020  
(20-5764) 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:  Environmental Protection Agency (EPA) [1668]  
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 i f 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):  Airplane 
emissions; Quality (ICS 03.120), Environmental protection (ICS 13.020), Air quality (ICS 
13.040), Environmental testing (ICS 19.0 40), Aircraft and space vehicles in general (ICS 
49.020), Aerospace engines and propulsion systems (ICS 49.050)  
5. Title, number of pages and language(s) of the notified document:  Control of Air 
Pollution From Airplanes and Airplane Engines: GHG Emission Standards and Test 
Procedures (39 page(s), in English)  
6. Description of content:  Proposed rule - The Environmental Protection Agency (EPA) is 
proposing greenhouse gas (GHG) emission standards applicable to certain classes of 
engines used by certain civil  subsonic jet airplanes with a maximum takeoff mass greater 
than 5,700 kilograms and by certain civil larger subsonic propeller -driven airplanes with 
turboprop engines having a maximum takeoff mass greater than 8,618 kilograms. These 
proposed standards are  equivalent to the airplane CO2 standards adopted by the 
International Civil Aviation Organization (ICAO) in 2017 and would apply to both new type 
design airplanes and in -production airplanes. The standards proposed in this rule are the 
equivalent of the I CAO standards, consistent with U.S. efforts to secure the highest 
practicable degree of uniformity in aviation regulations and standards. The proposed 
standards would, if finalized, also meet the EPA's obligation under section 231 of the 
Clean Air Act to a dopt GHG standards for certain classes of airplanes as a result of the 
2016 "Finding That Greenhouse Gas Emissions From Aircraft Cause or Contribute to Air 
Pollution That May Reasonably Be Anticipated To Endanger Public Health and Welfare" 
(hereinafter "20 16 Findings") -- for six well -mixed GHGs emitted by certain classes of 
airplane engines. Airplane engines emit only two of the six well -mixed GHGs, CO2 and 
nitrous oxide (N2O). Accordingly, EPA is proposing to use the fuel -efficiency -based metric 
establishe d by ICAO, which reasonably serves as a surrogate for controlling both the 
GHGs emitted by airplane engines, CO2 and N2O.  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Protection of the environment; Harmonization  G/TBT/N/USA/1640  
 
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  8. Relevant documents:   
• 85 Federal Register (FR) 51556, 20 August 2020; Title 40 Code of Federal 
Regulations (CFR) Parts 87 and 1030:  
https://www.govinfo.gov/ content/pkg/FR -2020-08-20/html/2020 -16271.htm  
https://www.govinfo.gov/content/pkg/FR -2020-08-20/pdf/2020 -16271.pdf  
• This proposed rule is identified by Docket N umber EPA -HQ-OAR-2018-
0276.   The Docket Folder is available on Regulations.gov  at 
https://www.regulations.gov/docke t?D=EPA -HQ-OAR-2018-0276  and provides 
access to primary and supporting documents as well as comments received. 
Documents are also accessible from Regulations.gov  by searching the Docket 
Number.   WTO Members and t heir 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:  19 October 2020  
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/2020/TBT/USA/20_5055_00_e.pdf