The march isssue of Field & Stream has an ad on the back cover that raises a question.

The ad, not the bottle, bears a seal with the words "EXTRA AGED". The ad copy includes the following:
"The longer you wait ... the better it gets."
"Evan Williams. Aged longer to taste smoother."
The shoulder label on the bottle includes the words "EXTRA AGED" along with "SOUR MASH".

Is all of this merely advertising fluff, or is there a legal requirement associated with this label.

Is the youngest bourbon still as young as 36 months?

Edited: I just checked my open bottle, purchased a year or more ago, and it has the same shoulder label. This is not a new development; I'm merely not very observant.

Yours truly,
Dave Morefield