From the BREWERS ASSOCIATION:
An American craft brewer is small, independent and traditional.
– Annual production of 6 million barrels of beer or less (approximately 3 percent of U.S. annual sales).
– Less than 25 percent of the craft brewery is owned or controlled (or equivalent economic interest) by an alcoholic beverage industry member that is not itself a craft brewer.
– A brewer that has a majority of its total beverage alcohol volume in beers whose flavor derives from traditional or innovative brewing ingredients and their fermentation. Flavored malt beverages (FMBs) are not considered beers.”