R10-5 Left on Green Arrow Only
Tells drivers that the indicated left turn is permitted only on a green arrow.
- Sign Name
- Left on Green Arrow Only
- MUTCD Code
- R10-5
- Sign Category
- Regulatory Signs
Specifications
- Shape
- Rectangle (Vertical)
- Color / legend
- White background, black legend and border
Sizes & Dimensions (inches)
These are dimensions shown on the linked layout. Select the required size using the applicable MUTCD and agency requirements; the smallest drawing size is not necessarily the permitted minimum.
The displayed face is the LEFT legend; select the appropriate movement legend and signal arrangement.
- Drawing size 124" × 30"
- Drawing size 230" × 36"
- Drawing size 348" × 60"
When & Where It's Used
- Left-turn signal control
Placement Context
- Where it sits
- Use adjacent to the applicable left-turn signal face when this supplemental instruction is used..
- CA MUTCD reference
- CA MUTCD 2026 §2B.59
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Educational 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. Reference editions: California MUTCD 2026 (effective January 18, 2026) and the Federal MUTCD 11th Edition with Revision 1.
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