I am attending a meeting of a gov agency next month in DC, as an expert to help judge some research proposals. We've been told "make your own hotel reservations and they all offer the gov rate" (which is $209). The hotel says "proof of gov employment or gov travel orders required". Anyone have any idea what proof I need for "travel orders?" All my interaction so far is by email with program managers - would be pretty easy to fake if I were so inclined.

Related to a previous post, when requesting special corp rates (a specific company, my client, whom I was visiting) at the Marriott in downtown Philly I was politely asked for some evidence (it was a very good rate). Printout of some correpondence and the name of the person at the local company sufficed. I was not at all put out by being asked for such. (Client was going to reimburse me in any case, but they'd asked me to use their rate - which is also normal).