The online files below, accessible via the world wide web, comprise the official NASA-maintained version of the National Aeronautics and Space Administration supplement to the Federal Acquisition Regulation (FAR) - NASA FAR Supplement (NFS) Version 15.0, effective September 28, 2015.  The NFS is issued as Chapter 18 of Title 48, Code of Federal Regulations.  The NFS has been modified through PN 17-01, dated January 17, 2017.


Click here to browse the NFS in MS Word.


Click here to view the html version of the NFS.  This version enables access to users unable to browse the NFS via MS Word.



Procurement Notices

Procurement Class Deviations




Procurement Information Circulars




FAR and NFS Search Engine

Procurement Library FAR and NFS




For questions relating to NFS publications, contact the NASA FAR Supplement Manager at


For questions pertaining to NASA regulations applicable to Small Business, contact R. Todd Lacks, NASA HQ, Office of Procurement, at



To recommend editorial changes to the NFS, such as corrections of misspelled words, omitted words or lines, and errors in format or in links to referenced documents, submit an electronic message to -- include the NFS citation and a clear description of the error.  Other suggestions for improving the NFS should follow the instructions in NFS 1801.271.


Owner:  Manuel Quinones


Curator:  Manuel Quinones


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