41 CFR 102-34.135 - What do we do about a lost or stolen license plate?
You must report the loss or theft of license plates as follows:
(a) U.S. Government license plates. Report to your local security office (or equivalent), local police, to GSA Fleet when a GSA Fleet leased motor vehicle is involved, and to the Federal Government Motor Vehicle Registration System.
Title 41 published on 2013-07-01
no entries appear in the Federal Register after this date.