Sign R60A(Rt) “Optional Movement Lane Control” as specified by the California Department of Transportation (Caltrans) for use with the California Manual on Uniform Traffic Control Devices. This is an obsolete revision of sign R3-6R in the national MUTCD that Caltrans has “unofficially reinstated for use in lieu of the federal equivalent sign, due to limitations in size, color, or alternate message options”.
Optional Movement Lane Control
California Department of Transportation