Originally Posted by
chococat
In the US, the government rate applies to Federal employees (not teachers or professors that are State employees) on official government business (not leisure trips). I think the policy changed in mid-2021. However, enforcement is inconsistent and its possible that the front desk employee won't know what to do with a non-English international identification card. Of course, the consequence for being ineligible for the gov rate is reversion to the current rate, which could be quite expensive. So... officially, probably not, but YMMV.
This is overbroad. You really have to look at T&Cs for individual hotels. Some are limited to federal employees on official business, others include contractors, state employees, etc. That said, I haven’t seen any that were broad enough to include employees of foreign governments.