United States traffic warning sign W8-5, "Slippery When Wet". Introduced in 2012 to replace a similar sign with an updated symbol that included a seat belt, and visual adjustments to the car and driver figure.
Any traffic control device design or application provision contained in this Manual shall be considered to be in the
public domain
. Traffic control devices contained in this Manual
shall not be protected by a patent, trademark, or copyright
, except for the Interstate Shield and any other items owned by FHWA.