FAA Federal Aviation Administration

FAP Fundamental Aeronautics Program

FASAB Federal Accounting Standards Advisory Board

FCI Facility Condition Index

FFRDC federally funded research and development center

FTE full time equivalent

FY fiscal year

GRC Glenn Research Center

GSFC Goddard Space Flight Center

HFFF Hypervelocity Free-Flight Facility

HITL human-in-the-loop

HTMSL High-Temperature Mass Spectrometry Laboratory

HVAC heating, ventilation, and air conditioning

IIFD integrated intelligent flight deck

IRAC integrated resilient aircraft control

IRAD independent/internal research and development

IRT icing research tunnel

ISRU in situ resource utilization

ISS International Space Station

IT information technology

IVHM Integrated Vehicle Health Management

JPL Jet Propulsion Laboratory

JSC Johnson Space Center

KSC Kennedy Space Center

LaRC Langley Research Center

LCROSS Lunar Crater Observation and Sensing Satellite

LDRD Laboratory-Directed Research and Development

LSWT low-speed wind tunnel

MSFC Marshall Space Flight Center

NAC NASA Advisory Council

NASA National Aeronautics and Space Administration

NFLR NASA Federal Laboratory Review

NGATS Next Generation Air Transportation System

NPL Nanotube Processing Laboratory

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