English:
610 mm × 610 mm (24 in × 24 in) U.S. Highway shield, made to the specifications of the
2004 edition of Standard Highway Signs
and modified to match Historic US 66 shields often used across the state of Arizona. (Note that there is a missing "J" label on the left side of the diagram.) Uses the
Roadgeek 2005
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.
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