This guide summarizes the MUTCD requirements and practical application guidance for the R3-5fP RIGHT LANE sign. Use this resource to understand when it is required, how to place it correctly, and how to maintain clear visibility for safe operations.
Mounted with an R3-5 mandatory-movement lane-control sign
At the point where the regulation applies, per CA MUTCD Part 2B.
Mount at the standard height and setback for the roadway with clear sight lines.
High reflectivity and clear sight lines are essential day and night.
A supplemental RIGHT LANE plaque used above or below a mandatory-movement lane-control sign (the R3-5 series) to show that the required movement applies to the right lane. It carries the word legend RIGHT LANE and is not used alone.
A supplemental RIGHT LANE plaque used above or below a mandatory-movement lane-control sign (the R3-5 series) to show that the required movement applies to the right lane. It carries the word legend RIGHT LANE and is not used alone. In the field, R3-5fP Right Lane is typically positioned at the advance warning area, ahead of the work. Common deployments include mounted with an R3-5 mandatory-movement lane-control sign; identifies the right lane at multilane work-zone approaches; used where movements are assigned lane by lane. Always confirm its size, retroreflective sheeting, spacing, and placement against the CA MUTCD 2026 and the reviewing agency before finalizing the traffic control plan.
At the point where the regulation applies, per CA MUTCD Part 2B.
Typical minimum: 30" × 12" (plaque).
Used in California with a mandatory movement lane-control sign to indicate the right lane the control applies to, where a work-zone approach assigns movements by lane.
Go to California NotesEducational reference only. This is not an official Caltrans, FHWA, or local agency publication and is not legal or engineering advice. Always verify sign selection, size, placement, spacing, and application against the current CA MUTCD 2026, Caltrans sign specifications, Standard Plans, project documents, and the reviewing agency’s requirements. Local jurisdictions may impose additional requirements, and final selection, placement, and dimensions may require engineering judgment or agency approval. Written against California MUTCD 2026 (effective January 18, 2026) and the Federal MUTCD 11th Edition. Official sources last verified June 2026.
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