This section discusses some of the most popular temporary work visas which are used by foreign nationals to enter the U.S. and work in various occupations for various periods of time.
Note that these are not the only types of work visas which are available. In addition, foreign nationals sometimes obtain the authorization to work based on other qualifications, such as by qualifying for "Temporary Protected Status", for individuals from certain countries which are experiencing some-type of strife. Likewise, some foreign nationals obtain temporary work status as part of their student visas, or as a precursor to obtaining permanent residency status.
Anyone considering the various options, should take a look at the List of Temporary Visas and Classifications, as well as the List of of primary avenues to U.S. Permanent Residency (“Green Card” status).
It is also important to note that certain nationals have special types of work authorization available to them, e.g., Canadians, Mexicans, Australians, Singaporeans, etc.