The term "craft brewery" is defined by the industry group "the Brewers Association." It's not legally binding. That group changed the definition of "craft brew

The term "craft brewery" is defined by the industry group "the Brewers Association." It's not legally binding. That group changed the definition of "craft brewery" from a brewery that produces less than 2 million bbl/year to one that produces less than 6 million bbl/year. They made this change in 2011, as Sam Adams began to produce more than 2 million bbl/year.