Travel costs incurred in support of a sponsored project are allowable costs, consistent with the terms and conditions of the award and the Institute’s Travel and Business Expenses policies.

Particular attention should be paid to plans involving foreign travel prior to making any reservations.  Under the Fly America Act, travelers must use U.S. flag air carriers when those travel costs are being charged to federal awards, with limited exceptions allowed.  The guidelines of use of U.S. flag air carriers should be reviewed carefully to make sure your travel arrangements are consistent with these requirements and can be documented accordingly for reimbursement purposes (for example, see NSF GPG/AAG V(B)(4).)

Note that with the growth of code-sharing within airlines, it is often difficult to recognize when a U.S. flag air carrier is being used, because the aircraft of choice may be a foreign carrier that has leased a certain number of seats to a U.S. flag carrier.  There is a notation on the ticket receipt (normally in the upper left corner) that identifies whether the code-shared seat is considered a U.S. carrier.  Travel agents should be consulted if there is any doubt.