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California Sign Specification Drawings - Caltrans
Sign Charts - Caltrans
Sign Spec Updates - Caltrans
2018 Revised Standard Specifications - Caltrans
Cal-NExUS Sign Specifications - Caltrans
How an Artist Helped Millions of Drivers With a Counterfeit Highway Sign
Chapter 4: Construction Details, Section 82: Signs and Markers - Caltrans
Highway Numbering in California - www.cahighways.org
Travel Alert - quickmap.dot.ca.gov