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 or the State of Texas.
Texas Manual on Uniform Traffic Control Devices, Revision 2, October 2014, Introduction, Page I-1. [1]
To the extent that they are incorporated by specific reference, the latest editions of the following publications, or those editions specifically noted, shall be a part of this Manual: "Standard Highway Sign Designs for Texas" book (TxDOT); and "Color Specifications for Retroreflective Sign and Pavement Marking Materials" (appendix to subpart F of Part 655 of Title 23 of the Code of Federal Regulations).
Texas Manual on Uniform Traffic Control Devices, Revision 2, October 2014, Part 1, Section 1A.11 (Relation to Other Publications). [2]
Uploaded a work by Texas Department of Transportation from [https://ftp.dot.state.tx.us/pub/txdot-info/trf/shsd/2012/complete.pdf Standard Highway Sign Designs for Texas. Revision 4. 2012 Edition - May 2021], page 1-114 with UploadWizard