Code of Federal Regulations (alpha)

CFR /  Title 20  /  Part 404  /  Sec. 404.1032 Work for a foreign government.

If you work as an employee of a foreign government in any capacity, your work is excluded from employment. If you are a citizen of the United States and work in the United States as an employee of a foreign government, you are considered to be self-employed (Sec. 404.1068(d)).