Travelers may receive M&IE per diem based upon U.S. General Services Administration (GSA) rates for in-state and out-of-state travel. Specific GSA maximum M&IE per diem rates are assigned to designated primary destinations within each state.or in-state travel, locations not listed have a rate not to exceed the state of Texas maximum. For out-of-state travel, the maximum rate for locations not listed is the standard U.S. GSA M&IE per diem. For foreign travel, travelers will be reimbursed for actual expenses not to exceed the U.S. DOS rates.