The Agricultural Research Service (ARS) is the United States Department of Agriculture's chief scientific research agency and one of the world's premiere scientific organizations. 

ARS Postdoctoral Research Affiliates perform limited research projects on problems selected by senior scientists in direct support of the mission of the research unit on agricultural problems of high national priority effecting American agriculture.  

**ANNOUNCEMENT IS OPENED UNTIL FILLED OR DECEMBER 31, 2009**

Applications will be reviewed upon receipt.  If the position is not filled prior to December 31, 2009, applications must be postmarked by that date.