To be labeled as a
straight whiskey, no flavoring or coloring compounds can be added to the spirit after the fermenting of the
grain. Some producers claim that according to a 1941
Internal Revenue Service ruling issued at the request of Jack Daniel Distillery, the Lincoln County Process is what distinguishes "Tennessee whiskey" from "
bourbon". However, not all producers of products labeled as Tennessee whiskey use the process. (Specifically, it is not used in the production of
Benjamin Prichard's Tennessee Whiskey.) The term "Tennessee whiskey" does not actually have a legal definition in the U.S. Federal regulations that define the
Standards of Identity for Distilled Spirits. The only legal definition of Tennessee whiskey in U.S. federally recognized legislation is the
North American Free Trade Agreement (NAFTA), which states only that Tennessee whiskey is "a straight Bourbon Whiskey authorized to be produced only in the State of Tennessee". This definition is also recognized in the law of
Canada, which states that Tennessee whiskey must be "a straight Bourbon Whiskey produced in the State of Tennessee". None of these regulations requires the use of the Lincoln County filtering process (or any other filtering process). On May 13, 2013, the governor of Tennessee signed House Bill 1084, requiring maple charcoal filtering to be used for products produced in the state labeling themselves as "Tennessee whiskey" (with a particular exception tailored to exempt Benjamin Prichard's) and including the existing requirements for bourbon. As federal law requires statements of origin on labels to be accurate, the Tennessee law effectively gives a firm definition to Tennessee whiskey. ==References==