ATSSA filed a friend of the court brief in support of the Intelligent Transportation Society of America (ITS America), the American Association of State Highway and Transportation Officials (AASHTO) and the Amateur Radio Emergency Data Network (AREDN), which are appealing an order by the Federal Communications Commission (FCC) to reallocate a portion of the 5.9 GHz spectrum band to unlicensed uses including WiFi.

The FCC voted unanimously on Nov. 18, 2020 to reallocate more than half of the safety band. The new rules adopted by the FCC make the lower 45 megahertz (MHz) of the spectrum available for unlicensed uses and require Intelligent Transportation System (ITS) licensees to stop using that portion of the spectrum within a year.

The FCC’s action came despite warnings from the U.S. Department of Transportation (USDOT), U.S. Department of the Treasury and multiple transportation-safety-focused organizations including ATSSA.