H-1B is an employment-based, non-immigrant visa for temporary workers in America.
H-1B is an employer-sponsored visa i.e. an employer must offer a job and petition for your H-1B visa with the US immigration department.
This approved petition is a work permit allows you to get visa stamp and work in the US for that employer.
H-1B is issued to a specialty occupation, requires theoretical and practical application of a body of specialized knowledge along with a bachelor’s degree or its equivalent.
The US employer must be able to justify the exclusive need for this foreign worker/visa holder and prove that the task cannot be accomplished by a local citizen who may either be unavailable or not qualified, either academically or professionally.
What is the maximum time period allowed on a limit on H-1B Visa?
Initial approval is for 3 years, which can be extended in increments of up to 3 years. Total stay cannot exceed total 6 years.