I learned today that in California at least, they have to be designated as a Scenic Highway [1]; then advertising is not allowed. [1] https://dot.ca.gov/progra

I learned today that in California at least, they have to be designated as a Scenic Highway [1]; then advertising is not allowed. [1] https://dot.ca.gov/programs/design/lap-landscape-architecture-and-community-livability/lap-liv-i-scenic-highways https://dot.ca.gov/programs/design/lap-landscape-architectur...