. /.   WORLD TRADE  
ORGANIZATION  G/TBT/N/USA/221/Add.1 
22 December 2006 
 (06-6145) 
Committee on Technical Barriers to Trade Original:   English 
  
NOTIFICATION  
 
Addendum
 
  The following communication, dated 20 December 2006, is being circulated at the request of 
the Delegation of the United States
. 
 
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Extension of Comment Period  
 
 
Production and airworthiness approvals  Agency:  Federal Aviation Administration (FAA), Department of Transportation (DOT)  On 5 October 2006, the Federal Aviation Administration (FAA) issued a Notice of Proposed 
Rulemaking (NPRM) entitled, Production and Ai rworthiness Approvals, Part Marking, and 
Miscellaneous Proposals (71 FR 58915).  Comments on that document were due on or before 3 
January 2007. By letter dated 5 December 2006, the Aeronautical Repair Station Association (ARSA) 
asked FAA to extend the comment period for 90 da ys.  ARSA believes the need for an extended 
comment period arises from the scope and extent of the changes proposed in the NPRM, the timing of 
its release, and the impact it will have on small businesses. ARSA also asked that we extend the 
comment period on the draft ACs for 90 days.  By letter dated 6 December 2006, the Aerospace 
Industries Association (AIA) and the General Av iation Manufacturers Association (GAMA) asked 
FAA to extend the comment period for 45 days.  AI A and GAMA cited several factors that, in their 
view, necessitate the extension, including the lengt h of time since the Aviation Rulemaking Advisory 
Committee recommendation was submitted to FAA, th e scope and impact of the proposal, and the 
effective shortening of the comment period by observa nce of the holidays.  While we concur with the 
petitioners' requests for an extension of the comment  period, we believe that a 45-day or 90-day 
extension is not warranted.  We have already pr ovided a 90-day comment period.  An additional 90 
days would result in a comment period extending for six full months. Although we agree that 
additional time for comments may be needed, this n eed must be balanced against the need to proceed 
expeditiously with a rulemaking that first invol ved industry input through an Aviation Rulemaking 
Advisory Committee in 1993.  We believe an additi onal 30 days allows adequate time for interested 
parties to provide meaningful comments. Absen t unusual circumstances, we do not anticipate any 
further extension of the comment period for this rulemaking. 
 DATES:  Comments must be received by 5 February 2007.   ADDRESSES:  You may send comments identified by Docket Number FAA-2006- 
25877 using any of the following methods: 
 DOT Docket Web site: Go to: http://dms.dot. gov and follow the instructions for sending your 
comments electronically. G/TBT/N/USA/221/Add.1 
Page 2  
 
  Government-wide rulemaking Website: Go to http:// www.regulations.gov and follow the instructions 
for sending your comments electronically. Mail: Docket Management Facility 
U.S. Department of Transportation 
400 Seventh Street, SW. Nassif Building, Room PL-401 
Washington, DC 20590-0001. 
 
Fax:  (+1 202) 493 2251 
 Hand Delivery:  
Room PL-401 on the plaza level of the Nassif Bu ilding, 400 Seventh Street, SW., Washington,DC, 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.  Additional details are available online at Internet URL: 
http://frwebgate1.access.gpo.gov/cgi-
bin/waisgate.cgi?WAISdocID=6337613 27450+1+0+0&WAISaction=retrieve 
 
 
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