US lawWashingtonStatutesTitle 47Chapter 36260RCW 47.36.260RCW 47.36.260: Signs indicating proper lane usage.Last amended: 1986Year: 2026Length: 12 wordsOfficial source The department shall erect signs on multilane highways indicating proper lane usage.PreviousRCW 47.36.250NextRCW 47.36.270