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MUTCD 11th Edition, Revision 1

Last updated July 6, 2026

A searchable, deep-linkable copy of the Manual on Uniform Traffic Control Devices, the U.S. standard for traffic signs, signals, and pavement markings.

We're Roundabout Technologies, and we built this because we kept needing to search the manual, jump to a specific section, and send a teammate a link to the exact paragraph we were looking at, and it was a real pain to do so with the 1000 page pdf. We thought others would find it useful so we made it publicly available, and we hope it's helpful!

What Roundabout does

We build AI-powered traffic signals that use cameras to build a real-time, super-detailed 3D map of all cars, bikes, buses and pedestrians, then use that map to make optimal signal change decisions at every moment, for single intersections and across road networks. If that sounds interesting, you can subscribe to our newsletter or reach out at roundabout.tech/contact. We'd love to hear from you.

How to use this edition

Use the nav or the search box to move around Parts 1 through 9 and the appendices. Every numbered section has its own stable link, so a part page plus #4I.06 drops you right on that section. Clicking the section header copies the link to that section. The Sign Code Index maps every sign code (R1-1, W1-1, EM2-1, …) to a picture of the sign and the section that defines it.

Found something off?

If you have feedback or suggestions, please let us know here: roundabout.tech/contact.

State editions

Many states publish their own MUTCD, this federal manual adopted with state-specific amendments. We mirror those the same way, each at its own permanent link:

  • California MUTCD 2026: Caltrans' adoption of this manual, amended for use in California (effective January 18, 2026).
  • Delaware MUTCD 2026: DelDOT's Delaware Edition of this manual (2026, pending approval).
  • Arizona MUTCD 2026: this manual as amended by the Arizona Supplement (January 2026).
  • Colorado MUTCD: this manual with the Colorado Supplement applied (January 2026).
  • Washington MUTCD: this manual with Washington's WAC 468-95 modifications applied (October 2025).
  • Oregon MUTCD: this manual with the Oregon Supplement applied (effective June 1, 2026).
  • Illinois MUTCD: this manual with the Illinois Supplement applied (February 2026).
  • Ohio MUTCD (OMUTCD): this manual with the Ohio Supplement applied (effective January 16, 2026).
  • Nebraska MUTCD: this manual with the NDOT Supplement applied (2025).
  • Alaska Traffic Manual: this manual with the 2026 Alaska Traffic Manual Supplement applied (effective January 20, 2026).
  • Massachusetts MUTCD: this manual with the Massachusetts Amendments applied (January 2026).
  • Texas MUTCD (TMUTCD): TxDOT's 2025 Texas Edition, a standalone adoption of this manual (effective January 18, 2026).
  • Minnesota MUTCD: MnDOT's Minnesota MUTCD 11th Edition (June 2026), a standalone adoption of this manual with "(M)"-flagged modifications.
  • Indiana MUTCD (IMUTCD): INDOT's 2025 Indiana Edition, a standalone adoption of this manual (FHWA-approved January 16, 2026).
  • Virginia MUTCD: VDOT's Version 11.0 (January 2026), a standalone adoption of this manual with "(VA)"-suffixed modifications; Part 6 defers to the Virginia Work Area Protection Manual.
  • Idaho MUTCD: ITD's Idaho Adoption of this manual (July 2025, IDAPA 39.03.41) with Idaho's edits integrated.
  • Michigan MUTCD 2025: MDOT's 2025 Michigan Edition, a standalone adoption of this manual.
  • Wisconsin MUTCD: WisDOT's standalone Wisconsin Edition of this manual.

More states are on the way.

Unofficial convenience copy

This isn't the official, controlling document though we will try to keep it as accurate and up to date as possible as new revisions and editions come out. The MUTCD is a public-domain work of the U.S. federal government. For the authoritative text, use the official edition from the Federal Highway Administration.