G/TBT/N/USA/665/Rev.1  
 
5 October 2018  
(18-6163) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
  
NOTIFICATION  
Revision  
The following notification is being circulated in accordance with Article 10.6.  
 
1. Notifying Member: UNITED STATES OF AME RICA 
If applicable, name of local government involved (Articles 3.2 and 7.2):   
2. Agency responsible:  Environmental Protection Agency (EPA)  
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:   
3. Notified under Article 2.9.2 [ X], 2.10.1 [  ], 5.6.2 [  ], 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):  
Greenhouse gas emissions and fuel economy standards ; Environmental protection 
(ICS 13.020), Air quality (ICS 13 .040), Commercial vehicles (ICS  43.080), Passenger 
cars. Caravans and light tr ailers (ICS  43.100), Fuels (ICS  75.160).  
5. Title, number of pages and language(s) of the notified document: Light-Duty 
Vehicle GHG Program Technical Amendments  
6. Description of content: EPA is proposing two technical corrections to the light -duty 
vehicle greenhou se gas (GHG) emissions standards regulations finalized in the 2012 
rulemaking that established standards for model years 2017 - 2025 light -duty vehicles. 
First, EPA proposes to correct regulations pertaining to how auto manufacturers must 
calculate credits for the GHG program's optional advanced technology incentives. The 
regulations currently in place result in auto manufacturers receiving fewer credits than 
the agency intended for electric vehicles, plug -in hybrid electric vehicles, fuel cell electric 
vehicles, and natural gas fueled vehicles. Auto manufacturers requested through a 
petition letter submitted jointly by the Auto Alliance and Global Automakers in June 2016 
that EPA correct the regulations to provide the intended level of credits for these 
technologies. Second, the regulations regarding how manufacturers must calculate certain 
types of off -cycle credits contain an error and are inconsistent with the 2012 final rule 
preamble, raising implementation concerns for some manufacturers. The proposed 
amendments would clarify the calculation methodology in the regulations. Both of these 
corrections allow the program to be implemented as originally intended. The proposed 
corrections are not expected to result in any additional regulatory burdens or costs.  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Protection of the environment  
8. Relevant documents: 83 Federal Register (FR) 49344, 1 October 2018; 40 CFR Part 
86. Will appear in the Federal Register when adopted.  G/TBT/N/USA/665/Rev.1  
 
- 2 - 
 
  9. Proposed date of adoption:  To be determined  
Proposed date of entry into force:  To be determined  
10. Final date for comments: 31 October 2018  
11. Texts available from: National enquiry point [  ] or address, telephone or fax 
numbers and email and website addresses, if available, of other body:  
https://members.wto.org/crnattachments/2018/TBT/USA/18_5195 _00_e.pdf