Office of Traffic, Safety and Technology 42 Why Signs are Installed  Bonus Law (1958) –In 1958, Congress passed the first outdoor advertising control legislation which is commonly known as the Bonus Law  Highway Beautification Act (1965) –The Highway Beautification Act of 1965 called for control of outdoor advertising, including removal of certain types of signs, along the nation s growing Interstate Highway System and the existing federal ‐ aid primary highway system