WTO notification · TBT
United StatesAdopted, according to its latest notice
Official title
National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision
The United States issued an addendum on 9 March 2026 to the earlier TBT notification G/TBT/N/USA/1678. Addenda often report that a measure was adopted, changed, postponed or withdrawn. The measure was first notified on 15 December 2020. The comment period closed on 14 May 2021.
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Accident and disaster control; Electronic display devices
Latest notice (G/TBT/N/USA/1678/Add.4, 9 March 2026)
The latest notice says the measure was adopted or published.
National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision
The Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD) is incorporated in Federal Highway Administration (FHWA) regulations and recognized as the national standard for traffic control devices used on all public roads, bikeways, and private roads open to public travel. The purpose of this final rule is to make technical corrections to revise Standard, Guidance, Option provisions, and supporting information, relating to the traffic control devices in all parts of the MUTCD. The changes provide minor technical corrections and address editorial changes that have been identified since the 11th Edition of the MUTCD was published. The changes promote uniformity and ultimately improve and promote the safe and efficient utilization of roads that are open to public travel. The MUTCD, with these changes incorporated, is being designated as Revision 1 of the 11th Edition of the MUTCD. This final rule is effective 5 March 2026. The incorporation by reference of the publication listed in the rule is approved by the Director of the Office of the Federal Register as of 5 March 2026. 91 Federal Register (FR) 10771, 5 March 2026; Title 23 Code of Federal Regulations (CFR) Part 655: This final rule is identified by Docket Number FHWA-2024-0074. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents. Documents are also accessible from Regulations.gov by searching the Docket Number and/or keywords. Other actions…
Proposed rule; notice of proposed amendments (NPA) - The Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD) is incorporated in FHWA regulations and recognized as the national standard for traffic control devices used on all public roads. The purpose of this NPA is to revise standards, guidance, options, and supporting information relating to the traffic control devices in all parts of the MUTCD. The proposed changes are intended to update the technical provisions to reflect advances in technologies and operational practices, incorporate recent trends and innovations, and set the stage for automated driving systems as those continue to take shape. The proposed changes would promote uniformity and incorporate technology advances in the traffic control device application, and ultimately improve and promote the safe and efficient utilization of roads that are open to public travel. These proposed changes are being designated as the 11th edition of the MUTCD.
Every notice about this measure published here, newest first. Each one is the notifying member's own text.
AddendumG/TBT/N/USA/1678/Add.4
National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision
The Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD) is incorporated in Federal Highway Administration (FHWA) regulations and recognized as the national standard for traffic control devices used on all public roads, bikeways, and private roads open to public travel. The purpose of this final rule is to make technical corrections to revise Standard, Guidance, Option provisions, and supporting information, relating to the traffic control devices in all parts of the MUTCD. The changes provide minor technical corrections and address editorial changes that have been identified since the 11th Edition of the MUTCD was published. The changes promote uniformity and ultimately improve and promote the safe and efficient utilization of roads that are open to public travel. The MUTCD, with these changes incorporated, is being designated as Revision 1 of the 11th Edition of the MUTCD. This final rule is effective 5 March 2026. The incorporation by reference of the publication listed in the rule is approved by the Director of the Office of the Federal Register as of 5 March 2026. 91 Federal Register (FR) 10771, 5 March 2026; Title 23 Code of Federal Regulations (CFR) Part 655: This final rule is identified by Docket Number FHWA-2024-0074. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents. Documents are also accessible from Regulations.gov by searching the Docket Number and/or keywords. Other actions…
AddendumG/TBT/N/USA/1678/Add.3
National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision
The Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD) (also referred to as 'the Manual') is incorporated by reference within our regulations, approved by FHWA, and recognized as the national standard for traffic control devices used on all public roads, bikeways, or private roads open to public travel. The purpose of this final rule is to revise Standard, Guidance, Option provisions, and supporting information, relating to the traffic control devices in all parts of the MUTCD to improve safety for all road users by promoting uniformity, and to incorporate new provisions that reflect technological advances in traffic control device application. The MUTCD, with these changes incorporated, is being designated as the 11th Edition of the MUTCD. Effective on 18 January 2024. The incorporation by reference of the publication listed in the rule is approved by the Director of the Office of the Federal Register as of 18 January 2024. Title 23 Code of Federal Regulations (CFR) Parts 470, 635 and 655 This final rule and previous actions notified under the symbol G/TBT/N/USA/1678 are identified by Docket Number FHWA-2020-0001. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents as well as comments received. Relevant information is also posted to another Docket on Regulations.gov at Documents are also accessible from Regulations.gov by searching the Docket Number and/or keywords.
AddendumG/TBT/N/USA/1678/Add.2
National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision
TITLE: National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision AGENCY: Federal Highway Administration (FHWA), U.S. Department of Transportation (DOT) ACTION: Final rule SUMMARY: The purpose of this final rule is to update the Manual on Uniform Traffic Control Devices (MUTCD) to provide standards, guidance, options, and supporting information relating to maintaining minimum levels of retroreflectivity for pavement markings. The MUTCD is incorporated in FHWA regulations and recognized as the national standard for traffic control devices used on all streets, highways, bikeways, and private roads open to public travel. DATES: Effective on 6 September 2022. The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of 6 September 2022. This final rule and previous actions notified under the symbol G/TBT/N/USA/1678 are identified by Docket Number FHWA-2020-0001. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents as well as comments received. Relevant information is also posted to another Docket on Regulations.gov at Documents are also accessible from Regulations.gov by searching the Docket Number and/or keywords.
AddendumG/TBT/N/USA/1678/Add.1
Comment deadline: Closed on 14 May 2021
National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision
TITLE: National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision AGENCY: Federal Highway Administration (FHWA), U.S. Department of Transportation (DOT) ACTION: Proposed rule; extension of comment period SUMMARY: FHWA is extending the comment period for a notice of proposed amendments (NPA) and request for comments, which was published on 14 December 2020 in the Federal Register. The original comment period is set to close on 15 March 2021. The extension is based on concern expressed by a number of stakeholders that, as a result of the scope and complexity of the NPA, the 15 March 2021, closing date does not provide sufficient time to review and provide comprehensive comments. The FHWA recognizes that others interested in commenting may have similar concerns and agrees that the comment period should be extended. Therefore, the closing date for comments is changed to 14 May 2021, which will provide stakeholders and others interested in commenting additional time to discuss, evaluate, and submit responses to the docket. DATES: Comments must be received on or before 14 May 2021. Late-filed comments will be considered to the extent practicable. This proposed rule; extension of comment period and previous actions notified under the symbol G/TBT/N/USA/1678 are identified by Docket Number FHWA-2020-0001. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents…
CorrigendumG/TBT/N/USA/1678/Corr.1
AGENCY: Federal Highway Administration (FHWA), U.S. Department of Transportation (DOT) ACTION: Proposed rule; notice of proposed amendments; correction (NPA) SUMMARY: The Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD) is incorporated in FHWA regulations and recognized as the national standard for traffic control devices used on all public roads. FHWA recently published its NPA and placed supplemental documents to the docket for the rulemaking. Two of the supplemental
Regular notificationG/TBT/N/USA/1678
Comment deadline: Closed on 15 March 2021
National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision
Proposed rule; notice of proposed amendments (NPA) - The Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD) is incorporated in FHWA regulations and recognized as the national standard for traffic control devices used on all public roads. The purpose of this NPA is to revise standards, guidance, options, and supporting information relating to the traffic control devices in all parts of the MUTCD. The proposed changes are intended to update the technical provisions to reflect advances in technologies and operational practices, incorporate recent trends and innovations, and set the stage for automated driving systems as those continue to take shape. The proposed changes would promote uniformity and incorporate technology advances in the traffic control device application, and ultimately improve and promote the safe and efficient utilization of roads that are open to public travel. These proposed changes are being designated as the 11th edition of the MUTCD.
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