"Congress created the H-1B program in 1990 to enable U.S. employers to hire temporary, foreign workers in specialty occupations. The law capped the number of H-1B visas issued per fiscal year at 65,000. Since then, the cap has fluctuated with legislative changes. Congress asked GAO to assess the impact of the cap on the ability of domestic companies to innovate, while ensuring that U.S. workers are not disadvantaged. In response, GAO examined what is known about (1) employer demand for H-1B workers; (2) how the cap affects employer costs and decisions to move operations overseas; (3) H-1B worker characteristics and the potential impact of raising the cap; and (4) how well requirements of the H-1B program protect U.S. workers. GAO analyzed data from 4 federal agencies; interviewed agency officials, experts, and H-1B employers; and reviewed agency documents and literature.