The NSSC provides travel reimbursement services for all authorized Agency travel including: domestic, foreign, local, ETDY, and Change of Station (COS). Federal Travel Regulations (FTR)Traveler Extended TDY and TaxesDomestic Per Diem RatesForeign Per Diem Rates NSSC Travel now has another way that a transferee Traveler may submit his or her vouchers. Please see...