Aliens visiting the United States temporarily for pleasure are covered by the B-2 non-immigrant visa (NIV) category. 8 CFR §41.31(b)(2) defines pleasure as “legitimate activities of a recreational character including tourism, amusement, visits with friend

Alien visitors coming to the United States temporarily for business are covered by the B-1 non-immigrant visa (NIV) category. By and large, periods of stay in the United States under the B-1 visa category are brief.