City Council of Los Angeles v. Taxpayers for Vincent (1984) upheld an
ordinance banning signs on utility poles, saying it did not violate the
First Amendment.
Billboards and Newsracks
The Supreme Court ruled in 2022 that the city of Austin’s regulations that
prohibited new digital billboards or conversion of existing billboards to
digital are not a violation of the free speech clause of the First
Amendment just because the regulations allow digitization of signs that are
the premise of a business.