Manual on Uniform Traffic Control Devices
Your MUTCD Turns 80!
On November 7, 2015, the 80th birthday of the MUTCD, and throughout the year when you see an easy-to-read sign, a bright edgeline marking on a foggy night, the countdown timer at a crosswalk, or a well-placed bike lane, take a moment to reflect on the eighty years of progress and innovation that the MUTCD embodies. This progress has resulted in safer, more efficient travel on our Nation's roads. Over the years, the MUTCD has unknowingly become the traveler's best friend and silent companion, guiding us on our way along the streets, bikeways, back roads, and highways. As the direct means of communication with the traveler, traffic control devices speak to us softly, yet effectively and authoritatively. From glass “cat’s-eye” reflectors to glass beads to microprismatic sheeting, nighttime sign visibility has advanced significantly. Active devices at rail crossings save lives by giving us a positive message about train traffic. And countdown timers on pedestrian signals help us cross a busy street. So the next time you hit the pavement, the path, or the pedals, you can be sure that the MUTCD, through our dedicated professionals who make complex decisions on what devices to install, will help you get where you want to go safely, efficiently, and comfortably! The MUTCD…it's all about you!
Clarification of Existing Standards and Guidance on Innovative Traffic Control Devices
On January 5, 2017, the FHWA issued a memorandum which clarifies the status of several traffic control devices, including bicycle lane extensions and crosswalk markings. This memorandum also provides an update on the evaluation of several devices under consideration for Interim Approval, including two-stage bicycle turn boxes and red-colored pavement for transit lanes.
Official Interpretation 3(09)-41 (I) – Markings Between Double Lines
On December 8, 2016, the FHWA issued Official Interpretation 3(09)-41 to clarify that it is not permissible to install any pavement markings or colorings between the lines of a standard double-yellow center line, and that blue pavement markings are reserved exclusively for supplementing white markings for parking spaces for persons with disabilities.
Interim Approval 18 – Intersection Bicycle Boxes
On October 12, 2016 the FHWA issued Interim Approval 18 allowing the optional use of Intersection Bicycle Boxes. Jurisdictions wishing to use Intersection Bicycle Boxes under this Interim Approval must submit a written request to the FHWA.
Termination of Interim Approval 5
On January 25, 2016, the FHWA published a notice in the Federal Register terminating Interim Approval 5, which permitted the optional use of the Clearview letter style on positive-contrast highway guide sign legends. All highway agencies, including those agencies who received the FHWA's approval to use Clearview under Interim Approval 5, shall use the FHWA Standard Alphabets for all new and replacement signs. However, any existing sign that uses Clearview lettering may remain in place until it reaches the end of its useful service life. The Interim Approvals page contains additional information about implementation.
The Manual on Uniform Traffic Control Devices, or MUTCD defines the standards used by road managers nationwide to install and maintain traffic control devices on all public streets, highways, bikeways, and private roads open to public travel. The MUTCD is published by the Federal Highway Administration (FHWA) under 23 Code of Federal Regulations (CFR), Part 655, Subpart F.
The MUTCD, which has been administered by the FHWA since 1971, is a compilation of national standards for all traffic control devices, including road markings, highway signs, and traffic signals. It is updated periodically to accommodate the nation's changing transportation needs and address new safety technologies, traffic control tools and traffic management techniques.
On December 16, 2009 a final rule adopting the 2009 Edition of the MUTCD was published in the Federal Register with an effective date of January 15, 2010. States must adopt the 2009 National MUTCD as their legal State standard for traffic control devices within two years from the effective date. The Federal Register notice, which provides detailed discussion of the FHWA's decisions on major changes from the 2003 edition, can be viewed at http://edocket.access.gpo.gov/2009/pdf/E9-28322.pdf (PDF, 716KB).
FHWA does not print copies of the MUTCD. National organizations have partnered and printed hard copies of the MUTCD. These hard copies are available for sale. Go to ATSSA, ITE, AASHTO, or IMSA to get sales information.
On May 14, 2012 final rules adopting Revisions 1 and 2 of the 2009, MUTCD were published in the Federal Register with an effective date of June 13, 2012. The Federal Register notices, which provide detailed discussions of the FHWA's decisions can be viewed at:
The PDF version of the 2009 MUTCD with Revision Numbers 1 and 2 incorporated, dated May 2012 of the MUTCD is the most current edition of the official FHWA publication.
PDF files can be viewed with the Acrobat® Reader®
United States Department of Transportation - Federal Highway Administration