. /.   WORLD TRADE  
ORGANIZATION  G/TBT/N/USA/268 
10 May 2007 
 (07-1942) 
Committee on Technical Barriers to Trade Original:   English 
  
 
NOTIFICATION 
 
The following notification is being circ ulated in accordance with Article 10.6. 
 
1. Member to Agreement notifying:   UNITED STATES
 
If applicable, name of local government involved (Articles 3.2 and 7.2):         
2. Agency responsible:   Environmental Protection Agency (EPA) (275) 
Name and address (including telephone and fax numbers, e-mail and web-site 
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):   New Marine 
Compression-Ignition Engine Emissions (HS:  8901, 8902, 8903, 8904;   ICS:  13.020, 
13.040, 47.020, 47.040) 
5. Title, number of pages and language(s) of the notified document:   Control of Emissions 
From New Marine Compression-Ignition Engines at or Above 30 Litres per Cylinder 
(4 pages, in English) 
6. Description of content:   A January 2003 final rule established the first U.S. emission 
standards for new compression-ignition Cate gory 3 marine engines, those with a 
displacement at or above 30 litres per cylinder displacement.  It also  established a deadline 
of 27 April 2007 for EPA to promulgate a ne w tier of emission standards for these engines 
as determined appropriate under Clean Air Act (CAA) section 213(a).  This rulemaking schedule was intended to allow EPA time to c onsider the state of technology that may 
permit deeper emission reductions and the status  of international action for more stringent 
standards.  Since 2003, we have continued to  gain a greater understanding of the technical 
issues described in the final ru le and to assess the continuing efforts of manufacturers to 
apply advanced emission control technologies to these very large engines, through ongoing discussions with various stakeholders.  In add ition, we have continued to work with and 
through the International Maritime Organizati on (IMO) toward more stringent international 
emission standards that would apply to all ne w marine diesel engines on ships engaged in 
international transportation.  The IMO is an important forum for EPA to gather new 
information and data regarding emission contro l technologies, costs, and other information 
on Category 3 engines and vessels. The IMO is al so important because the majority of ships 
used in international commerce are flagged in  other nations.  Due to the length of time 
necessary to assess advanced emission control technologies much of the information that we 
believe is necessary to develop more stringent  Category 3 marine diesel engines standards 
has only become available recently and we expect  more information to come to light in the 
course of the current negotiations underway at  the IMO. Therefore, EPA is proposing a new G/TBT/N/USA/268 
Page 2  
 
  deadline for the rulemaking that will consider the next tier of Category 3 marine diesel 
engine standards. Under this new schedule, EPA  would adopt a final rule by 17 December 
2009. In the "Rules and Regulations" section of this Federal Register, we are making this 
revision as a direct final rule without a prio r proposed rule.  If we receive no adverse 
comment, we will not take further action on this proposed rule. 
7. Objective and rationale, including the na ture of urgent problems where applicable:  
Protection of  the environment 
8. Relevant documents:   72 Federal Register (FR) 20977 27 April 2007; Title 40 Code of 
Federal Regulations (CFR) Part 94.  Will app ear in the Federal Register when adopted.  
EPA - Diesel Boats and Ships - http://www.epa.gov/otaq/marine.htm 
9. Proposed date of adoption:   
Proposed date of entry into force:   }To be determined 
10. Final date for comments:   29 May 2007 
11. Texts available from:  National enquiry point [  X ] or address, telephone and fax 
numbers, e-mail and web-site addresses, if available of the other body:   
Internet URLs: 
http://a257.g.akamaitech.net/7/257/24 22/01jan20071800/edocket.access.gpo.gov/2007/E7-
8103.htm 
http://a257.g.akamaitech.net/7/257/24 22/01jan20071800/edocket.access.gpo.gov/2007/pdf/
E7-8103.pdf