NASA · Space
NASA Travel Reimbursement Services
The NSSC provides reimbursement for authorized Agency travel, including domestic, foreign, local, ETDY, and Change of Station (COS).

References include Federal Travel Regulations (FTR), Traveler Extended TDY and Taxes, Domestic Per Diem Rates, Foreign Per Diem Rates, and Change of Station information.
For COS travel, transferees can submit vouchers via a new process. NASA's guides for CONUS and OCONUS moves are available, with specific COS voucher details and forms.
For domestic travel, per diem is 75% of M&IE on the travel end day. The government covers rental car costs only for official travel time.
Travelers can check GSA's State Tax Information for domestic tax exemptions. For POV Mileage Reimbursement Rates for TDY and ETDY, refer to the GSA website.
NASA's standard reduced per diem for ETDY is 65%, as per NPR 9750.1-3.1.2.a. This rate can be further reduced for cost savings without mission impact.
The reduced ETDY rate applies from the first travel day. For ETDY over 90 days, long-term lodging facilities on the GSA schedule should be prioritized.
For foreign travel, consult CFR and NPR 9710.1 and NPR 9750.1. Contact the NSSC Contact Center for more information.
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