. /.  WORLD TRADE  
ORGANIZATION  G/TBT/N/USA/163 
19 December 2005 
 (05-6132) 
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) (168) 
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):   Fuel and Fuel Additives 
(HS Chapter 2710;  ICS 13) 
5. Title, number of pages and language(s) of the notified document:   Regulation of Fuels 
and Fuel Additives:  Modifications to Sta ndards and Requirements for Reformulated and 
Conventional Gasoline Including Butane Blenders  and Attest Engagements;  Proposed Rule 
(15 pages, in English)  
6. Description of content:   EPA is proposing to take acti on on certain modifications to the 
reformulated and conventional gasoline regula tions.  Based on experience gained since the 
promulgation of these regulations, EPA proposed  these modifications along with various 
others in a Notice of Proposed Rulemaking (NPRM) published on 11 July 1997.  In final rules published on 31 December 1997 and 28 December 2001, EPA took final action on 
several of the modifications proposed in the 11 July 1997 NPRM.  Today's action proposes 
to take action on many of the remaining modifications in the 1997 NPRM.  The modifications in today's proposed rule would correct technical errors, clarify certain provisions, and codify guidance previously issued by the Agency.  This rule also would make several minor technical corrections to the RFG rule which were not included in 
the 11 July 1997 proposal, and make two minor t echnical corrections to the Tier 2 gasoline 
sulfur rule.  The emissions benefits achi eved from the RFG and conventional gasoline 
programs would not be reduced as a result of this proposed rule. 
7. Objective and rationale, including the na ture of urgent problems where applicable:  
Protection of the environment 
8. Relevant documents:   70 Federal Register (FR) 74581 15 December 2005;  Title 40 Code 
of Federal Regulations (CFR) Part 80.  Will a ppear in the Federal Register when adopted. G/TBT/N/USA/163 
Page 2  
 
9. Proposed date of adoption:   
Proposed date of entry into force:   }To be determined 
10. Final date for comments:   13 February 2006 
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:  Full text of this 
Notification is now available on the Internet at URLs: 
http://a257.g.akamaitech.net/7/257/24 22/01jan20051800/edocket.access.gpo.gov/2005/05-
23806.htm 
http://a257.g.akamaitech.net/7/257/24 22/01jan20051800/edocket.access.gpo.gov/2005/pdf/
05-23806.pdf