This guide summarizes the MUTCD requirements and practical application guidance for the SC13(CA) DO NOT PASS sign. Use this resource to understand when it is required, how to place it correctly, and how to maintain clear visibility for safe operations.
Applied per the CA MUTCD and Caltrans sign specifications
Advance warning area, ahead of the work.
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.
The SC13(CA) Do Not Pass is a California construction sign. Verified against the official Caltrans Sign Specification (SC13--CA.pdf): the sheet shows DO NOT PASS. Colors: BORDER & LEGEND - BLACK; BACKGROUND - WHITE (REFLECTIVE). Standard sizes: Standard 42x30 and Special 54x42 (in).
The SC13(CA) Do Not Pass is a California construction sign. Verified against the official Caltrans Sign Specification (SC13--CA.pdf): the sheet shows DO NOT PASS. Colors: BORDER & LEGEND - BLACK; BACKGROUND - WHITE (REFLECTIVE). Standard sizes: Standard 42x30 and Special 54x42 (in). In the field, SC13(CA) Do Not Pass is typically positioned at the advance warning area, ahead of the work. Common deployments include applied per the CA MUTCD and Caltrans sign specifications; selected and sized for the roadway type and setting; coordinated with the overall signing plan and permit. Always confirm its size, retroreflective sheeting, spacing, and placement against the CA MUTCD 2026 and the reviewing agency before finalizing the traffic control plan.
Advance warning area, ahead of the work.
Typical minimum: 48" × 48" on conventional roads; 60" × 60" on expressways and freeways.
Used in California per the CA MUTCD and the Caltrans Sign Specification (SC13--CA.pdf). Confirm size, retroreflective sheeting, and placement for the specific condition and the reviewing agency.
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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