English: RV Sanitary Station sign (symbol D9-12) from Chapter 2I of the 2009 Manual on Uniform Traffic Control Devices (MUTCD) by the U.S. Federal Highway Administration.
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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