If I want to travel to the US for tourism or business, what kind of visa should I get and where should I apply?

The B1 visa for nonimmigrants is granted to people who wish to do business within the United States. This visa allows them to conduct business while they are in the United States, but it does not allow them to be employed or have a business. The B1 visa is usually accompanied by the B2 visa and is known as B1 / B2. The first is for business and the second is for tourism.