Following are the requirements for US visa, especially while applying for a B2 visa and B1 visa USA from Dubai.
Applicants who don't have enough funds must prove plausible evidence that someone, that could be a family, public or private agency, or an educational institution, is supporting their stay. They have to present original documents of the person or entity sponsoring the trip. In case the U.S. trip is sponsored by themselves, proof of earnings, which could be from employment, income from property, or interest on saving accounts are some of the USA visit visa from Dubai requirements.
If you are visiting the United States on a package tour, you must provide a proof of the payment made to the tour operator. If this is your second trip, or you have already visited U.S., be it on business, medical, or tourist visa, provide proof of the air tickets, and the stamps on your passport. These are some of the requirements for US tourist visa you must fulfill.
If you are serving the Armed Forces or the Government, a letter of sanctioned leave and a no objection certificate letter have to be produced along with your B1 and B2 visa USA