The Standard Spectrum Resource Format (SSRF) defines standard data elements
for automated exchange of radio-frequency (RF) spectrum-related data.
SSRF is managed under the authority of DOD Directive 5100.35, Military
Command, Control, Communications, and Computers Executive Board (MC4EB) and
published in the MC4EB Pub 8 document.
The SSRF specification is published and placed in to the public domain by
the MC4EB. The SSRF specification is royalty-free and license-free.
OpenSSRF is a open source, royalty-free, license-free reference software implementation of
the most recent SSRF specification; currently v3.1.0.
By "license-free" we mean there is no licensing fee
to use the software: the OpenSSRF software code is licensed under the
Apache License, Version 2.0.
OpenSSRF is developed and maintained by
Key Bridge Global LLC
in collaboration with members of the
The Wireless Innovation Forum Spectrum Innovation Committee
and with unofficial advisory support from the
Defense Spectrum Organization.