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.
File history
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{{Information |Description=16x16 U.S. route shield, approximated to the 1948 standards. |Source=29 July 2010 |Date=Based on
File:US 66 Arizona 1926.svg |Author=[http://shields.aaroads.com/ Levente Jakab], modified by
Scott Nazelrod
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