Mexico will now accept all ages of U.S. beef under new rules that remove cattle age restrictions related to BSE.

The United States Department of Agriculture's Food Safety and Inspection Service (FSIS) updated its Export Library, which is the final step in allowing beef of all ages to be exported to Mexico.

All product must derive from cattle slaughtered after May 28, 2013. 

Prior to the change only beef from cattle under 30 months of age was allowed to be exported.