The core aging requirement that defines a whiskey as straight is if the distillate has spent at least two years stored in charred new oak barrels,[REF] except corn whiskey which must use uncharred or used oak barrels.
Other than an age statement, which is a direct reference to the age of the youngest spirit in a bottle, the only other special labeling dealing with the age of a straight whiskey in the U.S. is bottled in bond.