The Object Marker OM-3L is a MUTCD-compliant DOT traffic control sign used to mark fixed objects within or adjacent to the roadway where traffic must pass to the left of the obstruction. Featuring black diagonal stripes sloping downward toward the left on a yellow background, the OM-3L provides clear visual guidance to motorists and enhances both daytime and nighttime visibility. Manufactured to meet Manual on Uniform Traffic Control Devices standards, this sign is commonly installed on median ends, island noses, bridge supports, and other roadway hazards and is available in durable aluminum with optional high-intensity or diamond-grade reflective sheeting for long-term outdoor use.
