Wheat: Centre may revise quality norms
The request for relaxation in the "tolerance limits" of exotic weeds
was made by the Ministry of Food to the Ministry of Agriculture after
the former received representations from several countries that were
left out of the reckoning when the first order for 5 lakh tonnes of
wheat was placed with the Australian Wheat Board.

http://www.hindu.com/2006/05/03/stories/2006050300990100.htm