(a) No person shall drive upon a highway at such a slow speed as to impede or block the normal and reasonable movement of traffic unless the reduced speed is necessary for safe operation, because of a grade, or in compliance with law.

No person shall bring a vehicle to a complete stop upon a highway so as to impede or block the normal and reasonable movement of traffic unless the stop is necessary for safe operation or in compliance with law.

Terms Used In California Vehicle Code 22400

  • Department: means the Department of Motor Vehicles except, when used in Chapter 2 (commencing with Section 2100) of Division 2 and in Divisions 11 (commencing with Section 21000), 12 (commencing with Section 24000), 13 (commencing with Section 29000), 14 (commencing with Section 31600), 14. See California Vehicle Code 290
  • Engineering and traffic survey: as used in this code , means a survey of highway and traffic conditions in accordance with methods determined by the Department of Transportation for use by state and local authorities. See California Vehicle Code 627
  • Highway: is a way or place of whatever nature, publicly maintained and open to the use of the public for purposes of vehicular travel. See California Vehicle Code 360
  • Person: includes a natural person, firm, copartnership, association, limited liability company, or corporation. See California Vehicle Code 470
  • traffic: includes pedestrians, ridden animals, vehicles, street cars, and other conveyances, either singly or together, while using any highway for purposes of travel. See California Vehicle Code 620
  • vehicle: is a device by which any person or property may be propelled, moved, or drawn upon a highway, excepting a device moved exclusively by human power or used exclusively upon stationary rails or tracks. See California Vehicle Code 670

(b) Whenever the Department of Transportation determines on the basis of an engineering and traffic survey that slow speeds on any part of a state highway consistently impede the normal and reasonable movement of traffic, the department may determine and declare a minimum speed limit below which no person shall drive a vehicle, except when necessary for safe operation or in compliance with law, when appropriate signs giving notice thereof are erected along the part of the highway for which a minimum speed limit is established.

Subdivision (b) of this section shall apply only to vehicles subject to registration.

(Amended by Stats. 1979, Ch. 364.)