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Manual on Uniform Traffic Control Devices (MUTCD) arrows logo
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The MUTCD is a complex and evolving document. The Knowledge element of this Web site provides historic information about the development of traffic control devices and the MUTCD, an overview of who benefits from the information contained in the publication, and the process for updating standards. There's even a list of frequently asked questions about the MUTCD, which is updated regularly.

To go to a Knowledge topic, use the navigation at left, or select a topic below.


Evolution of the MUTCD

Who Uses the MUTCD

MUTCD Current Edition

Color Specifications

Amendment Process


Standard Highway Signs (SHS) Publication

Frequently Asked Questions