Under current United States law, the United States Citizenship and Immigration Services (USCIS) is only authorized to issue a total of 65,000 H-1B non-immigrant visas per fiscal year. In reality, however, the number of H-1B visas issued each year is significantly higher than this number due to rollovers of unused visas from previous years and several different exclusions to the regular cap. Up to 20,000 foreign nationals who hold a master’s degree or higher from a U.S. university may be exempt from this cap, as well as an unlimited number of H-1B non-immigrants who work at, but not necessarily for, a university, non-profit university research facility, or government research facility.