<https://marinmagazine.com/community/history/history-of-a-hig...>
Vermont, Maine, Hawaii, and Alaska completely ban billboard advertising.
Oregon, California, and Washington strongly regulate practices.
Alcohol and gambling are regulated, tobacco billboards are entirely prohibited in the US.
<https://www.alluvitmedia.com/blog/which-states-ban-billboard...>
Several regional bans are noted here: <https://www.scenic.org/2024/08/29/an-update-on-national-bill...>.