Regulations and information from the U.S. Department of Transportation, Federal Highway Administration.

• Manual on Uniform Traffic Control Devices (MUTCD)
  Sections relevant to street name signs from the 2003 edition with revision 1, November 2004:
   
  Paragraphs describing mandatory practices have the heading Standard, are printed in bold type and use the verb shall.

  Paragraphs containing recommended practices have the heading Guidance and use the verb should.

  • Introduction
    • Definitions of Standard, Guidance, Option, and Support
      (Scroll down about three screenfulls or nine paragraphs.)
  • Chapter 1A. General
    • 13. Definitions of Words and Phrases in This Manual
  • Chapter 2A. General
    • 06. Design of Signs
    • 08. Retroreflectivity and Illumination
    • 09. Minimum Retroreflectivity Levels
    • 11. Sign Colors
    • 12. Dimensions
    • 15. Sign Borders
    • 21. Posts and Mountings
  • Chapter 2D. Guide Signs (Conventional Roads)
    • 03. Color, Retroreflection, and Illumination
    • 04. Size of Signs
    • 05. Lettering Style
    • 06. Size of Lettering
    • 38. Street Name Sign
• Standard Highway Signs Book
• Highway Safety – Roadside Hardware