Various software or data exist in the repositories where the FreeBSD project has been granted a special licence to be able to use them. A case in point are the Terminus fonts for use with vt(4). Here the author Dimitar Zhekov has allowed us to use the "Terminus BSD Console" font under a 2-clause BSD license rather than the regular Open Font License he normally uses.
It is clearly sensible to keep a record of any such
      license grants.  To that end, the Core Team <core@FreeBSD.org> has decided to keep
      an archive of them.  Whenever the FreeBSD project is granted a
      special license we require the Core Team <core@FreeBSD.org> to be notified.  Any
      developers involved in arranging such a license grant, please
      send details to the Core Team <core@FreeBSD.org> including:
Contact details for people or organizations granting the special license.
What files, directories etc. in the repositories are covered by the license grant including the revision numbers where any specially licensed material was committed.
The date the license comes into effect from. Unless otherwise agreed, this will be the date the license was issued by the authors of the software in question.
The license text.
A note of any restrictions, limitations or exceptions that apply specifically to FreeBSD's usage of the licensed material.
Any other relevant information.
Once the Core Team <core@FreeBSD.org> is satisfied that all the necessary
      details have been gathered and are correct, the secretary will
      send a PGP-signed acknowledgement of receipt including the
      license details.  This receipt will be persistently archived and
      serve as our permanent record of the license grant.
The license archive should contain only details of license
      grants; this is not the place for any discussions around
      licensing or other subjects.  Access to data within the license
      archive will be available on request to the Core Team <core@FreeBSD.org>.
All FreeBSD documents are available for download at https://download.freebsd.org/ftp/doc/
Questions that are not answered by the
    documentation may be
    sent to <freebsd-questions@FreeBSD.org>.
    Send questions about this document to <freebsd-doc@FreeBSD.org>.