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 GuideCalifornia-Specific Guidance
This section highlights California modifications, notes, and standards that complement the MUTCD.
Learn more about California MUTCD AdoptionsCalifornia MUTCD Adoption
California has adopted the MUTCD with revisions and additions. The California Department of Transportation (Caltrans) publishes official modifications and interpretations.
CA MUTCD Chapters
California publishes its own manual with state amendments incorporated.
View Manual ChaptersAdoption Authority
Caltrans explains the statutory authority for California MUTCD adoption.
View Adoption AuthorityKey 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 StandardsWork Zone Requirements
Additional requirements for work zones, temporary traffic control, and detour routes.
View Work Zone InfoSign Usage & Placement
State-specific rules for sign placement, mounting height, and lateral clearance.
View Placement RulesSign Retroreflectivity
California requirements for retroreflective sign sheeting and visibility.
View Chapter 2AState Highway Permits
Caltrans encroachment permits apply to work within state highway right-of-way.
View State Highway PermitsCalifornia Resources
Helpful links, documents, and tools from Caltrans and other trusted sources.
- California MUTCDCalifornia traffic-control-device standards and application guidance.Open CA MUTCD
- 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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