As the article notes, this is a pretty standard immigration classification for people who travel to participate in competitive tournaments; chess players are cl

As the article notes, this is a pretty standard immigration classification for people who travel to participate in competitive tournaments; chess players are classified similarly. It's not really about the U.S. immigration service "validating" anything as a cultural category, just classifying what kind of business travel the people in question are engaged in, from the perspective of immigration law.