Copyright, Fair Use, and Licensing Statements for SRD, Data, Software, and Technical Series Publications | NIST

"Data/works created by NIST employees that are not covered by the Standard Reference Data Act are subject to 17 U.S.C. §105 and generally are not subject to copyright protection within the United States.  NIST data or other works may be subject to copyright protection in foreign countries.  NIST may also obtain and hold copyright in data/works created by non-NIST employees (e.g., NIST contractors) when copyright is assigned to NIST.  ..."