Back in the day, I used to see Maker's 46 advertised without the "Kentucky Straight Bourbon" label. Instead, it was just called "Kentucky Bourbon Whisky" as in this picture:
However, they are now bottling it with the "Straight" label, as seen here:
It was my understanding that in order to be a "straight" bourbon whisky, you need to be matured in 100% American oak, period. But Maker's 46 is finished with French oak staves, so how are they able to circumvent this categorization law?