The FCC has invited comments on a Notice of Proposed Rule Making
(NPRM) in WT Docket 19-138, which said the FCC would take ”a fresh
and comprehensive look” at the rules for the 5.9 GHz band. The FCC
proposes to make 5.850 – 5.895 GHz available for unlicensed
operations and to authorize transportation-related communication
technologies to use 5.895 – 5.925 GHz.

WT Docket 19-138 files can be found online in PDF format at,
https://www.fcc.gov/ecfs/filing/1217200308588 .

The FCC is not proposing to delete or otherwise amend the
5-centimeter secondary amateur radio allocation at 5.650 – 5.925
GHz, part of which includes the 75 Megahertz under consideration.

Comments are due by March 6, and reply comments are due by April 6.
ARRL will be filing comments supporting no change to 5.850 – 5.925
GHz for amateurs, as included in the FCC proposal.