The 511 trade name, slogan, logo design symbol and any combination, including its similarity in sound, appearance or meaning, all provide the identify for the nation's travel information number and distinguish its goods/services.
511 is a service mark of the American Association of State Highway and Transportation Officials (AASHTO) and registered with the U.S. Patent and Trademark Office (registration number 2680779, Jan. 28, 2003).
The logo was designed with the notion that the telephone is a universal, easily recognized symbol. It clearly sends the message that 511 is a telephone-based service. The blue double lines and dotted lines evoke a sense of movement or thoughts about transportation.
Individuals wishing to use the 511 logo must adhere to the national guidelines established by AASHTO. The guidelines are available online at http://www.ops.fhwa.dot.gov/511/resources/publications/511guide_ver3/511guide3.htm.