Browse Signs by Series
Find California MUTCD traffic control signs organized by their MUTCD series number. Each series page includes the full sign list with downloads, field-use notes, and a direct link to the CA MUTCD reference.
MUTCD signs are grouped into numbered series by type and use. Each series covers a specific sign family — for example, the W20 Series for road work warning signs, the R3 Series for turn and lane-use regulatory signs, and the M4 Series for detour route markers. Browsing by series helps contractors, traffic control drafters, and permit teams find the exact sign code they need.
Warning Signs
Browse all Warning Signs →W20 Series
The W20 Series covers diamond-shaped fluorescent-orange warning signs used at the beginning of and throughout road work …
View seriesW21 Series
The W21 Series includes warning signs that alert drivers to workers, equipment operators, and utility crews in or near t…
View seriesW3 Series
The W3 Series covers warning signs that alert drivers to stopping and signaling conditions ahead. W3-4 (BE PREPARED TO S…
View seriesW4 Series
The W4 Series covers warning signs for merging lanes, added lanes, and lane-change conditions. In temporary traffic cont…
View seriesW9 Series
The W9 Series includes warning signs for lane-ending and divided-highway transitions. W9-2 (LANE ENDS) is widely used in…
View seriesOM Series
The OM Series covers object markers — retroreflective warning devices used to delineate physical obstructions in or adja…
View seriesGuide Signs
Browse all Guide Signs →Detour Signs
Browse all Detour Signs →Regulatory Signs
Browse all Regulatory Signs →R1 Series
The R1 Series is the foundational right-of-way control series, covering STOP (R1-1) and YIELD (R1-2). These signs establ…
View seriesR2 Series
The R2 Series covers speed limit regulatory signs (R2-1) used to set the legally enforceable maximum speed on a roadway …
View seriesR5 Series
The R5 Series covers regulatory signs that prohibit specific vehicle movements or restrict access. DO NOT ENTER (R5-1) a…
View seriesR6 Series
The R6 Series includes ONE WAY signs used to establish and reinforce one-directional travel on a roadway. R6-1 (ONE WAY …
View seriesR3 Series
The R3 Series covers regulatory signs that control turning movements, lane-use requirements, restricted movements, and c…
View seriesRoad Closure Signs
Browse all Road Closure Signs →Sign series and codes are based on the California MUTCD (CA MUTCD 2026) and the FHWA Standard Highway Signs. This is an educational reference — always verify sign selection, size, placement, and application against the current CA MUTCD and the reviewing agency before finalizing a traffic control plan.
Need help selecting the right sign series for a California project?
Public Ready can help you identify the correct sign codes and series for your TCP, coordinate with the reviewing agency, and supply signs for rental or purchase.