. /.   WORLD TRADE  
ORGANIZATION  G/SPS/N/USA/2164 
1 March 2011  
 (11-1025) 
Committee on Sanitary a nd Phytosanitary Measures Original:   English 
  
 
NOTIFICATION 
 
1. Notifying Member:  UNITED STATES
 
If applicable, name of local government involved:    
2. Agency responsible:  US Environmental Protection Agency 
3. Products covered (provide tariff item numbe r(s) as specified in national schedules 
deposited with the WTO;  ICS numbers should be provided in addition, where 
applicable):  Multiple products 
4. Regions or countries likely to be affected, to the extent relevant or practicable: 
[X] All trading partners   
[ ] Specific regions or countries:    
5. Title of the notified document:  FINAL RULE:   Isobutane;  Exemption From the 
Requirement of a Tolerance  Language(s):  English  Number of pages:  5 
6. Description of content:  This final rule establishes an ex emption from the requirement of a 
tolerance for residues of isobutane (CAS Re g. No. 75-28-5) when used as an inert 
ingredient (propellant) in pesticide formul ations applied to growing crops and raw 
agricultural commodities after harvest, and when used as an inert ingredient (propellant) in 
pesticide formulations applied to animals (used  for food).  Landis International, on behalf 
of Whitmire Micro-Gen, submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting establishmen t of an exemption from the requirement of 
a tolerance.  This regulation eliminates the need to establish a maximum permissible level 
for residues of isobutane. 
7. Objective and rationale:  [X] food safety, [ ] animal health, [ ] plant protection, 
[  ] protect humans from animal/plant pest or disease, [ ] protect territory from other 
damage from pests.    
8. Is there a relevant international stan dard?  If so, identify the standard:  
[ ] Codex Alimentarius Commission (e.g.  title or serial number of Codex standard 
or related text)   
[ ] World Organization for Animal Health (OIE) (e.g. Terrestrial or Aquatic 
Animal Health Code, chapter number)    
[ ] International Plant Protection Convention (e.g. ISPM number)    
[X] None  G/SPS/N/USA/2164 
Page 2  
 
  Does this proposed regulation conform to the relevant international standard?   
 [ ] Yes   [ ] No 
 If no, describe, whenever possible, how and why it deviates from the 
international standard:    
9. Other relevant documents and language (s) in which these are available:  This 
document has been published in the Federal Regi ster and can be found at: Federal Register:  
2 February 2011 (Volume 76, Number 22)Rules and Regulations Page 5687-5691 
Or online at http://edocket.access.gpo. gov/2011/2011-2265.htm  
10. Proposed date of adoption (dd/mm/yy) :  2 February 2011 
Proposed date of publication (dd/mm/yy) :  2 February 2011 
11. Proposed date of entry into force:  [ ] Six months from date of publication , and/or  
(dd/mm/yy) :  2 February 2011 
[ ] Trade facilitating measure   
12. Final date for comments:  [ ] Sixty days from the date of circulation of the notification 
and/or (dd/mm/yy) :  Not applicable 
Agency or authority designated to handl e comments:  [ ] National Notification 
Authority, [ ] National Enquiry Point.  Address, fax number and e-mail address (if 
available) of other body:  Elizabeth Fertich, Registration Division (7505P), Office of 
Pesticide Programs, Environmental Protec tion Agency, 1200 Pennsylvania Ave., NW., 
Washington, DC 20460-0001;  Tel:  +(703) 34 7-8560;  E-mail:  fertich.elizabeth@epa.gov 
Please reference docket EPA-HQ-OPP-2009-0676 
13. Texts available from:  [X] National Notification Authority, [ ] National Enquiry Point.  
Address, fax number and e-mail address (if available) of other body:   United States 
SPS National Notification Authority, USDA Fore ign Agricultural Service, International 
Regulations and Standards Division (IRSD), Stop 1027, Washington D.C. 20250;  Tel:  +(1 
202) 720 1301;  Fax:  +(1 202) 720 0433;  E-mail:  us.s psenquirypoint@fas.usda.gov