This is a Bottled in Bond (BiB) bourbon. To be labelled BiB, the whiskey must be the product of one distillation season and one distiller at a single distillery, aged in a federally bonded warehouse under U.S. government supervision for at least four years, and it must be bottled at exactly 100 proof. Additionally, the BiB label must clearly identify the distillery where it was distilled and where it was bottled, if different.