Manual on Uniform Traffic Control Devices (MUTCD)
Washington State Manual on Uniform Traffic Control Devices – 2024-2025 Adoption Process
The Federal Highways Administration, also referred to as the FHWA, published the 11th Edition of the Manual on Uniform Traffic Control Devices (MUTCD) in December 2023. The MUTCD sets minimum standards for all Traffic Control Devices used on U.S. roads and highways. This includes all road signs, highway markings, electronic traffic signals, railroad crossings and roadway construction zone areas.
This is the first federal MUTCD update since 2009. Washington state will adopt the MUTCD with state-specific revisions in compliance with 23 CFR 633.605. WSDOT is the lead for that process, with local agencies also contributing.
Adoption date
The effective date for the 11th Edition of the MUTCD was Oct. 27, 2025.
To send a message to the TRC, please email mutcd@wsdot.wa.gov
Slow down on ice and snow.
It's easier to skid or lose control traveling at higher speeds. Give yourself more time to stop.
Carry chains, practice installing them.
Winter conditions could mean chains are required on your route. Practice putting them on your vehicle ahead of time.
Pack your winter car kit.
Carry extra supplies like warm clothing, ice scraper and brush, jumper cables and other emergency items.