Summary

Route sign for Missouri Supplemental Route M. Based on Image:MO-supp-K.svg by User:PHenry .

Licensing

This file is in the public domain because it comes from the Missouri Department of Transportation Engineering Policy Guide , sign number M1-5a, which states specifically in the introduction to Chapter 900 that : 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 items owned by FHWA.