In the FAQ it just says "Mechanical Turk currently does not support U.S. persons residing outside the United States." So if you are a resident of another country, you are supposed to open an account as a resident of that country. Afaik there's no rule against using mturk when traveling outside of your home country, and if there is, there's no enforcement of that rule at all.IIRC there is osmething in the TOS about turking outside the US. But @electrolyte probably knows the answer better than I do.