{"code":"VEH","codeName":"Vehicle Code","section":"21658","citation":"Veh. Code, § 21658","status":"in-force","lawOn":"2026-09-28","headings":[{"name":"DIVISION 11. RULES OF THE ROAD [21000. - 23336.]","url":"https://blackletter.si/vehicle-code/division-11"},{"name":"CHAPTER 3. Driving, Overtaking, and Passing [21650. - 21761.]","url":"https://blackletter.si/vehicle-code/division-11/chapter-3"},{"name":"ARTICLE 1. Driving on Right Side [21650. - 21664.]","url":"https://blackletter.si/vehicle-code/division-11/chapter-3/article-1"}],"history":"Amended by Stats. 1975, Ch. 450.","effective":null,"html":"<p>Whenever any roadway has been divided into two or more clearly marked lanes for traffic in one direction, the following rules apply:</p><p>(a) A vehicle shall be driven as nearly as practical entirely within a single lane and shall not be moved from the lane until such movement can be made with reasonable safety.</p><p>(b) Official signs may be erected directing slow-moving traffic to use a designated lane or allocating specified lanes to traffic moving in the same direction, and drivers of vehicles shall obey the directions of the traffic device.</p>","text":"Whenever any roadway has been divided into two or more clearly marked lanes for traffic in one direction, the following rules apply: (a) A vehicle shall be driven as nearly as practical entirely within a single lane and shall not be moved from the lane until such movement can be made with reasonable safety. (b) Official signs may be erected directing slow-moving traffic to use a designated lane or allocating specified lanes to traffic moving in the same direction, and drivers of vehicles shall obey the directions of the traffic device.","otherVersions":[],"url":"https://blackletter.si/vehicle-code/driving-on-right-side-21658","source":"California Legislative Information bulk export (pubinfo)"}