R3-3 No Turns
Prohibits all turning movements — both right and left turns — at the intersection where the word-legend NO TURNS sign is posted.
- Sign Name
- No Turns
- MUTCD Code
- R3-3
- Sign Category
- Regulatory Signs
Specifications
- Shape
- Square
- Color / legend
- White background, black legend
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.
- Layout 124" × 24"
- Layout 236" × 36"
- Layout 348" × 48"
When & Where It's Used
- Prohibiting all turns at intersections closed to turning traffic
- Channeling approach traffic to through movements only
- Temporary turn restrictions during pavement or lane work
Placement Context
- Where it sits
- At the point where the regulation applies, per CA MUTCD Part 2B.
- CA MUTCD reference
- CA MUTCD 2026 Chapter 2B — Regulatory Signs, Barricades, and Gates
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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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