MUTCD Sign ChartMUTCDSignChartA Public Ready Knowledge Resource

California MUTCD Notes & Requirements

California has adopted the MUTCD with supplementary notes, standard plans, and application requirements. These resources help ensure traffic control devices are used consistently and in compliance across the state.

View Work Zone Compliance Guide

California-Specific Guidance

This section highlights California modifications, notes, and standards that complement the MUTCD.

Learn more about California MUTCD Adoptions

California MUTCD Adoption

California has adopted the MUTCD with revisions and additions. The California Department of Transportation (Caltrans) publishes official modifications and interpretations.

CA MUTCD Adoption

View the official adoption status and effective dates.

View Adoption Details

CA Supplement to MUTCD

Access the Caltrans supplement with State-specific guidance.

View Supplement

Errata & Clarifications

Browse official errata, clarifications, and revisions.

View Errata

Laws & Regulations

Relevant California laws and regulations impacting traffic control.

View Regulations

Key California Considerations

Important topics and requirements to keep in mind when planning, designing, or installing traffic control.

Caltrans Standards

Caltrans Standard Plans (RSPs) and Standard Specifications for traffic control devices.

View Caltrans Standards

Work Zone Requirements

Additional requirements for work zones, temporary traffic control, and detour routes.

View Work Zone Info

Sign Usage & Placement

State-specific rules for sign placement, mounting height, and lateral clearance.

View Placement Rules

Sign Retroreflectivity

California requirements for retroreflective sign sheeting and visibility.

View Reflectivity Info

Local Agency Guidance

Guidance for cities, counties, and local agencies using traffic control devices.

View Local Guidance

California Resources

Helpful links, documents, and tools from Caltrans and other trusted sources.

  • Caltrans Traffic Manual (CTM)Comprehensive guidance on traffic control, design, and operations.Visit Caltrans CTM
  • Standard Plans & SpecificationsBrowse Caltrans Standard Plans (RSPs) and Standard Specifications.Visit Caltrans Standards
  • Caltrans Sign ChartsOfficial Caltrans sign charts and specification drawings.Visit Sign Charts
  • Work Zones (Caltrans)Resources and guidance for temporary traffic control and work zones.Visit Work Zones

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