The Food Safety Inspection Service (FSIS) is announcing that, since January 8, 2008, its laboratories have implemented a revised methodology for detecting and identifying E. coli O157:H7 in regulatory verification samples. This new method can be found in the Microbiology Laboratory Guidebook (MLG), Chapter 5.04.

FSIS invites interested persons to submit comments on this notice. Submit comments by November 17, 2008.