per diem day rate
1 Thus, if the full day rate is $49, the partial per diem rate allowed for the first day of travel is $39 ($49 less $10). 2  A traveler is not entitled to be reimbursed for the portion of per diem for any meal provided as part of the registration fee.his allowance is based on the federal meals and incidental expense (M & IE) per diem rates in effect for the locality of travel on the date of travel. Locality of travel is the place where the traveler stops for sleep.