Manual on Uniform Traffic Control Devices
Use of uniform traffic control devices, including shape, size, and color, helps reduce crashes and congestion and improves the efficiency of the system.
Use of the MUTCD is required on public roads by Oregon law.
Effective January 1, 2026, the Oregon Transportation Commission has adopted the MUTCD 11th edition, the Oregon Supplement to the MUTCD 11th edition, and the January 2026 Oregon Temporary Traffic Control Handbook in an update to
OAR 734-020-005.
The Federal Highway Administration (FHWA) periodically issues guidance in the form of an interim approval. Affected traffic control devices must be installed and operated under the direction and conditions identified in the interim approval.
FHWA Statewide Approvals
Prior Editions
For prior editions of the Oregon Supplement to the MUTCD please contact the State Traffic Standards Engineer.