The H-1 visa, also known as the H-1B visa, is a non-immigrant visa that allows U.S. companies to employ foreign workers in specialty occupations. These jobs typically require a higher education degree or its equivalent in experience. The visa is often used in fields such as technology, engineering, and healthcare. To qualify for an H-1 visa, the applicant must have a job offer from a U.S. employer and meet specific educational and professional criteria. The employer must also demonstrate that there are no qualified U.S. workers available for the position. The H-1 visa is usually granted for three years, with the possibility of extension.