G/TBT/N/USA/967
24 February 2015 
(15-1090)  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) [897] 
Name and address (including telephon e 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 Inquiry Point 
Email: ncsci@nist.gov   
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 applic able, otherwise national tariff heading. 
ICS numbers may be provided in  addition, where applicable): Tier 3 motor vehicle 
emissions. Air quality (ICS: 13.040), Internal combustion engines for road vehicles 
(ICS: 43.060) 
5. Title, number of pages and language(s) of the notified document: Tier 3 Motor 
Vehicle Emission and Fuel Standards, Nonr oad Engine and Equipment Programs, and 
MARPOL Annex VI Implementation (13 pages, in English) 
6. Description of content: The Environmental Protection Agency (EPA) is proposing this 
action on several amendments involving technical clarifications for different mobile source 
regulations. First, we are making a variety of corrections to the Tier 3 motor vehicle 
emission and fuel standards. These changes generally correct or clarify various provisions from the Tier 3 rule without expanding the Tier 3 program or otherwise making substantive changes. Second, we are revising the test procedures and compliance 
provisions for nonroad spark-ignition engines at or below 19 kW (and for the 
corresponding nonroad equipment) to conform to current practices. The changes to evaporative emission test procedures also appl y to some degree to other types of nonroad 
equipment powered by volatile liquid fuels.  Third, we are addressing an ambiguity 
regarding permissible design approaches for portable fuel containers meeting evaporative emission standards. Fourth, we are revising the regulations to more carefully align with 
current requirements that apply to marine vessels with diesel engines as specified under 
MARPOL Annex VI. Fifth, we are correcting ty pographical errors in regulatory changes 
finalized in the Voluntary Quality Assurance Program rulemaking.  
In the "Rules and Regulations" section of this  Federal Register, we are taking direct final 
action without a prior proposed rule. If we receive no adverse comment, we will not take 
further action on this proposed rule. 
7. Objective and rationale, including the nature of urgent problems where applicable: 
Protection of the environment  G/TBT/N/USA/967 
 
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  8. Relevant documents:   
• 80 Federal Register (FR) 8826, 19 February 2015; Title 40 Code of Federal 
Regulations (CFR) Parts 59, 80, 85, 86, 600, 1037, 1043, 1051, 1054, 1060, 1065, 
and 1066. Will appear in the Federal Register when adopted. 
• 19 February 2015 Direct Final Rule will be issued as Add.1 
http://www.gpo.gov/fdsys/pkg/FR- 2015-02-19/html/2015-02846.htm  
http://www.gpo.gov/fdsys/pkg/FR- 2015-02-19/pdf/ 2015-02846.pdf   
9. Proposed date of adoption:   To be determined 
Proposed date of entry into force:   To be determined   
10. Final date for comments: 6 April 2015 
11. Texts available from: Nati onal enquiry point [ ] or address, telephone and fax 
numbers and email and website addresse s, if available,  of other body:  
http://www.gpo.gov/fdsys/pkg/FR -2015-02-19/html /2015-02845.htm   
http://www.gpo.gov/fdsys/pkg/FR -2015-02-19/pd f/2015-02845.pdf