English:
750 mm by 600 mm (30 in by 24 in) U.S. Route shield, made to the specifications of the
2004 edition of Standard Highway Signs
. (Note that there is a missing "J" label on the left side of the diagram.) Uses the
Roadgeek fonts
. (United States law does not permit the copyrighting of typeface designs, and the fonts are meant to be copies of a U.S. Government-produced work anyway.)
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.