Since approximately what year have Chinese nationals been explicitly barred from flying on the ISS or directly cooperating with NASA on its operations?

Answer

2011

The policy explicitly preventing Chinese nationals from participating in ISS flights or directly cooperating with NASA operations has been in effect since 2011, predating the formalization of the Wolf Amendment in practice.

Since approximately what year have Chinese nationals been explicitly barred from flying on the ISS or directly cooperating with NASA on its operations?

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China's Space Station Ban - YouTube

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