China, People's Republic of
An individual who is a resident of the People's Republic of China and who is
temporarily in the United States primarily to teach, lecture, or conduct
research at a university or other accredited educational institution or
scientific research institution is exempt from U.S. income tax on income for
the teaching, lecturing, or research for a total of not more than 3 years.
This exemption does not apply to income from research carried on mainly for
the private benefit of