5) Visa Processing & Stamping
Commonly known as a US work visa, H1B is a nonimmigrant, employment based visa that is granted to an eligible temporary worker. You must have a US based, specialty occupation at-hand and your employer must apply for your H1B visa petition with the US Immigration Department. Once approved, this petition is a work permit in the form of I-797 which allows you to obtain a visa stamp and begin work in the U.S. for that employer. H1B visa stamping in the passport is needed for a foreign national to enter/re-enter the United States as an H1B worker. In other words, visa stamped on your passport is the authorization to enter into USA. ... Also, those who are applying for H1B visa stamping must appear for an interview at the US Consulate.