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.
Uploaded a work by Design: FHWA Vectorization: Big guy 637 from 1988 Standard Highway Signs, FHWA Can also be viewed at [https://www.nps.gov/parkhistory/online_books/npsg/sign_manual_1988.pdf] with UploadWizard