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.
11th Edition of the MUTCD
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