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Interstate lane closure with orange barrels and an arrow board under an autumn sky

Sep 23, 2026

Ohio Work Zone Requirements for Contractors: The OMUTCD After January 2026

Ohio changed how its traffic control manual works on January 16, 2026: the standalone OMUTCD was replaced by an Ohio Supplement used together with the national 11th Edition. Here is how the pieces fit, what the Supplement changes in Part 6, and what to confirm with ODOT or the local agency before working in Ohio.

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