Cycling Laws » USA » CA – California » California Vehicle Code
There are no federal laws outlining rules of the road. Instead, each state has its own set of traffic laws. In many cases, these are based at least in part on the Uniform Vehicle Code.
The California Vehicle Code governs bicycling in the state.
In addition to this, many counties, cities/towns, campuses, & military bases may have their own traffic regulations, usually known as ordinances or codes.
These local regulations may not take away any rights listed in the state traffic laws, unless this option is expressly permitted by the state. They also may not permit a person riding a bike to do anything prohibited by state law.
See below for the state laws that influence your bicycle riding in California.
(Retrieved from the California Legislative Information website on September 19, 2019. This is not an official version.)
Table of Contents
Links directly below are to sections on this page.
- (Note: These headings are not part of the California Vehicle Code, but are added here for clarification.)
- Rights and Duties of Cyclists [21200.]
- Alcohol and Drugs [21200.5.]
- Required and Prohibited Equipment [21201. / 21201.3. / 21201.5.]
- Position on the Roadway [21202.]
- General Operation of the Bicycle [21203. / 21204. / 21205. / 21206. / 21207.]
- Driving or Riding in Bicycle Lanes [21208. / 21209.]
- Parking the Bicycle: Sidewalks and Bikeways [21210. / 21211.]
- Helmet Use [21212. / 40303.5 / See also ‘Electric Bicycles’]
» Electric Bicycles [21207.5. / 21213. / 24016.]
Click on the Electric Bicycles tab (above, on a computer / below, on a mobile device).
100. Unless the provision or context otherwise requires, these definitions shall govern the construction of this code.
109. “Alcoholic beverage” includes any liquid or solid material intended to be ingested by a person which contains ethanol, also known as ethyl alcohol, drinking alcohol, or alcohol, including, but not limited to, alcoholic beverages as defined in Section 23004 of the Business and Professions Code, intoxicating liquor, malt beverage, beer, wine, spirits, liqueur, whiskey, rum, vodka, cordials, gin, and brandy, and any mixture containing one or more alcoholic beverages. Alcoholic beverage includes a mixture of one or more alcoholic beverages whether found or ingested separately or as a mixture.
For purposes of the Driver License Compact, “intoxicating liquor” as used in Section 15023 has the same meaning as “alcoholic beverage” as used in this code.
110. “Alley” is any highway having a roadway not exceeding 25 feet in width which is primarily used for access to the rear or side entrances of abutting property; provided, that the City and County of San Francisco may designate by ordinance or resolution as an “alley” any highway having a roadway not exceeding 25 feet in width.
112. “Amber” has the same meaning as “yellow,” and is within the chromaticity coordinate boundaries for yellow specified in regulations adopted by the Department of the California Highway Patrol.
231. A bicycle is a device upon which any person may ride, propelled exclusively by human power through a belt, chain, or gears, and having one or more wheels. Persons riding bicycles are subject to the provisions of this code specified in Sections 21200 and 21200.5.
231.5. A “bicycle path” or “bike path” is a Class I bikeway, as defined in subdivision (a) of Section 890.4 of the Streets and Highways Code.
(a) A “bicycle path crossing” is either of the following:
(1) That portion of a roadway included within the prolongation or connection of the boundary lines of a bike path at intersections where the intersecting roadways meet at approximately right angles.
(2) Any portion of a roadway distinctly indicated for bicycle crossing by lines or other markings on the surface.
(b) Notwithstanding subdivision (a), there shall not be a bicycle path crossing where local authorities have placed signs indicating no crossing.
255. “City” includes every city and city and county within this State.
275. “Crosswalk” is either:
(a) That portion of a roadway included within the prolongation or connection of the boundary lines of sidewalks at intersections where the intersecting roadways meet at approximately right angles, except the prolongation of such lines from an alley across a street.
(b) Any portion of a roadway distinctly indicated for pedestrian crossing by lines or other markings on the surface.
Notwithstanding the foregoing provisions of this section, there shall not be a crosswalk where local authorities have placed signs indicating no crossing.
280. “Darkness” is any time from one-half hour after sunset to one-half hour before sunrise and any other time when visibility is not sufficient to render clearly discernible any person or vehicle on the highway at a distance of 1,000 feet.
290. “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), 14.1 (commencing with Section 32000), 14.3 (commencing with Section 32100), 14.5 (commencing with Section 33000), 14.7 (commencing with Section 34000), and 14.8 (commencing with Section 34500), it shall mean the Department of the California Highway Patrol.
305. A “driver” is a person who drives or is in actual physical control of a vehicle. The term “driver” does not include the tillerman or other person who, in an auxiliary capacity, assists the driver in the steering or operation of any articulated firefighting apparatus.
312. The term “drug” means any substance or combination of substances, other than alcohol, which could so affect the nervous system, brain, or muscles of a person as to impair, to an appreciable degree, his ability to drive a vehicle in the manner that an ordinarily prudent and cautious man, in full possession of his faculties, using reasonable care, would drive a similar vehicle under like conditions.
(a) An “electric bicycle” is a bicycle equipped with fully operable pedals and an electric motor of less than 750 watts.
(1) A “class 1 electric bicycle,” or “low-speed pedal-assisted electric bicycle,” is a bicycle equipped with a motor that provides assistance only when the rider is pedaling, and that ceases to provide assistance when the bicycle reaches the speed of 20 miles per hour.
(2) A “class 2 electric bicycle,” or “low-speed throttle-assisted electric bicycle,” is a bicycle equipped with a motor that may be used exclusively to propel the bicycle, and that is not capable of providing assistance when the bicycle reaches the speed of 20 miles per hour.
(3) A “class 3 electric bicycle,” or “speed pedal-assisted electric bicycle,” is a bicycle equipped with a motor that provides assistance only when the rider is pedaling, and that ceases to provide assistance when the bicycle reaches the speed of 28 miles per hour, and equipped with a speedometer.
(b) A person riding an electric bicycle, as defined in this section, is subject to Article 4 (commencing with Section 21200) of Chapter 1 of Division 11.
(c) On and after January 1, 2017, manufacturers and distributors of electric bicycles shall apply a label that is permanently affixed, in a prominent location, to each electric bicycle. The label shall contain the classification number, top assisted speed, and motor wattage of the electric bicycle, and shall be printed in Arial font in at least 9-point type.
313. The term “electric personal assistive mobility device” or “EPAMD” means a self-balancing, nontandem two-wheeled device, that is not greater than 20 inches deep and 25 inches wide and can turn in place, designed to transport only one person, with an electric propulsion system averaging less than 750 watts (1 horsepower), the maximum speed of which, when powered solely by a propulsion system on a paved level surface, is no more than 12.5 miles per hour.
313.5. An “electrically motorized board” is any wheeled device that has a floorboard designed to be stood upon when riding that is not greater than 60 inches deep and 18 inches wide, is designed to transport only one person, and has an electric propulsion system averaging less than 1,000 watts, the maximum speed of which, when powered solely by a propulsion system on a paved level surface, is no more than 20 miles per hour. The device may be designed to also be powered by human propulsion.
314. An “expressway” is a portion of highway that is part of either of the following:
(a) An expressway system established by a county under Section 941.4 of the Streets and Highways Code.
(b) An expressway system established by a county before January 1, 1989, as described in subdivision (g) of Section 941.4 of the Streets and Highways Code.
360. “Highway” is a way or place of whatever nature, publicly maintained and open to the use of the public for purposes of vehicular travel. Highway includes street.
365. An “intersection” is the area embraced within the prolongation of the lateral curb lines, or, if none, then the lateral boundary lines of the roadways, of two highways which join one another at approximately right angles or the area within which vehicles traveling upon different highways joining at any other angle may come in conflict.
375. “Lighting equipment” is any of the following lamps or devices:
(a) A headlamp, auxiliary driving, passing, or fog lamp, fog taillamp, taillamp, stoplamp, supplemental stoplamp, license plate lamp, clearance lamp, side marker lamp, signal lamp or device, supplemental signal lamp, deceleration signal device, cornering lamp, running lamp, red, blue, amber, or white warning lamp, flashing red schoolbus lamp, side-mounted turn signal lamp, and schoolbus side lamp.
(b) An operating unit or canceling mechanism for turn signal lamps or for the simultaneous flashing of turn signal lamps as vehicular hazard signals, and an advance stoplamp switch.
(c) A flasher mechanism for turn signals, red schoolbus lamps, warning lamps, the simultaneous flashing of turn signal lamps as vehicular hazard signals, and the headlamp flashing systems for emergency vehicles.
(d) Any equipment regulating the light emitted from a lamp or device or the light sources therein.
(e) A reflector, including reflectors for use on bicycles, and reflectors used for required warning devices.
(f) An illuminating device that emits radiation predominantly in the infrared or ultraviolet regions of the spectrum, whether or not these emissions are visible to the unaided eye.
(g) An illuminated sign installed on a bus that utilizes an electronic display to convey the route designation, route number, run number, public service announcement, or any combination of this information, or an illuminated sign utilized pursuant to Section 25353.1.
377. A “limit line” is a solid white line not less than 12 nor more than 24 inches wide, extending across a roadway or any portion thereof to indicate the point at which traffic is required to stop in compliance with legal requirements.
405. A “motor-driven cycle” is any motorcycle with a motor that displaces less than 150 cubic centimeters. A motor-driven cycle does not include a motorized bicycle, as defined in Section 406.
(a) A “motorized bicycle” or “moped” is a two-wheeled or three-wheeled device having fully operative pedals for propulsion by human power, or having no pedals if powered solely by electrical energy, and an automatic transmission and a motor that produces less than 4 gross brake horsepower and is capable of propelling the device at a maximum speed of not more than 30 miles per hour on level ground.
(b) Every manufacturer of a motorized bicycle or moped, as defined in this section, shall provide a disclosure to buyers that advises buyers that their existing insurance policies may not provide coverage for these bicycles and that they should contact their insurance company or insurance agent to determine if coverage is provided. The disclosure shall meet both of the following requirements:
(1) The disclosure shall be printed in not less than 14-point boldface type on a single sheet of paper that contains no information other than the disclosure.
(2) The disclosure shall include the following language in capital letters:
“YOUR INSURANCE POLICIES MAY NOT PROVIDE COVERAGE FOR ACCIDENTS INVOLVING THE USE OF THIS BICYCLE. TO DETERMINE IF COVERAGE IS PROVIDED YOU SHOULD CONTACT YOUR INSURANCE COMPANY OR AGENT.”
440. An “official traffic control device” is any sign, signal, marking, or device, consistent with Section 21400, placed or erected by authority of a public body or official having jurisdiction, for the purpose of regulating, warning, or guiding traffic, but does not include islands, curbs, traffic barriers, speed humps, speed bumps, or other roadway design features.
445. An “official traffic control signal” is any device, whether manually, electrically or mechanically operated, by which traffic is alternately directed to stop and proceed and which is erected by authority of a public body or official having jurisdiction.
463. “Park or parking” shall mean the standing of a vehicle, whether occupied or not, otherwise than temporarily for the purpose of and while actually engaged in loading or unloading merchandise or passengers.
(a) A “pedestrian” is a person who is afoot or who is using any of the following:
(1) A means of conveyance propelled by human power other than a bicycle.
(2) An electric personal assistive mobility device.
(b) “Pedestrian” includes a person who is operating a self-propelled wheelchair, motorized tricycle, or motorized quadricycle and, by reason of physical disability, is otherwise unable to move about as a pedestrian, as specified in subdivision (a).
467.5. “Pedicab” means any of the following:
(a) A bicycle that has three or more wheels, that transports, or is capable of transporting, passengers on seats attached to the bicycle, that is operated by a person, and that is being used for transporting passengers for hire.
(b) A bicycle that pulls a trailer, sidecar, or similar device, that transports, or is capable of transporting, passengers on seats attached to the trailer, sidecar, or similar device, that is operated by a person, and that is being used for transporting passengers for hire.
(c) A four-wheeled device that is primarily or exclusively pedal-powered, has a seating capacity for eight or more passengers, cannot travel in excess of 15 miles per hour, and is being used for transporting passengers for hire. A pedicab defined under this subdivision is subject to the requirements of Article 4.5 (commencing with Section 21215) of Chapter 1 of Division 11.
470. “Person” includes a natural person, firm, copartnership, association, limited liability company, or corporation.
525. “Right-of-way” is the privilege of the immediate use of the highway.
(a) “Road” means any existing vehicle route established before January 1, 1979, with significant evidence of prior regular travel by vehicles subject to registration pursuant to Article 1 (commencing with Section 4000) of Chapter 1 of Division 3; provided, that “road” does not mean any route traversed exclusively by bicycles as defined in Section 39001, motorcycles as defined in Section 400, motor-driven cycles as defined in Section 405, or off-highway motor vehicles as defined in Section 38012.
(b) Even though nature may alter or eliminate portions of an existing vehicle route, the route shall still be considered a road where there is evidence of periodic use.
(c) A vehicle route need not necessarily be a publicly or privately maintained surface to be a road, as defined, for purposes of this section. Nothing contained herein shall pertain to any property in an incorporated area or properties held in private ownership.
(d) This section is definitional only and nothing contained herein shall be deemed to affect, alter, create, or destroy any right, title, or interest in real property, including, but not limited to, any permit, license, or easement; nor shall this chapter be deemed to affect the liability, or lack thereof, of any owner of an interest of real property based upon the use, possession, or ownership of such interest in real property or the entry upon such property by any person.
(e) This section shall only apply in a county where the board of supervisors has adopted a resolution or enacted an ordinance providing for such application.
530. A “roadway” is that portion of a highway improved, designed, or ordinarily used for vehicular travel.
540. A “safety zone” is the area or space lawfully set apart within a roadway for the exclusive use of pedestrians and which is protected, or which is marked or indicated by vertical signs, raised markers or raised buttons, in order to make such area or space plainly visible at all times while the same is set apart as a safety zone.
555. “Sidewalk” is that portion of a highway, other than the roadway, set apart by curbs, barriers, markings or other delineation for pedestrian travel.
587. “Stop or stopping” when prohibited shall mean any cessation of movement of a vehicle, whether occupied or not, except when necessary to avoid conflict with other traffic or in compliance with the direction of a police officer or official traffic control device or signal.
590. “Street” is a way or place of whatever nature, publicly maintained and open to the use of the public for purposes of vehicular travel. Street includes highway.
591. A “street” or “highway” shall not include those portions of a way or place in or upon which construction, alteration, or repair work is being performed insofar as the equipment performing such work and its operation are concerned. Where the work consists of a street or highway project, the limits of the project as shown or described in the plans or specifications of the awarding body shall be so excluded with reference to the equipment actually engaged in performing the work. The authority having jurisdiction over such way or place may include any or all of the requirements set forth in Divisions 11, 12, 13, 14 and 15 in any permit issued for work on such way or place and the awarding body on any such street or highway project may include such requirements in the specifications for such project. It is the intention of the Legislature, in enacting this section, that this section shall not be construed to relieve any person from the duty of exercising due care.
592. “Highway”, for the purposes of Division 3 (commencing with Section 4000), Division 12 (commencing with Section 24000), Division 13 (commencing with Section 29000), Division 14.8 (commencing with Section 34500), and Division 15 (commencing with Section 35000), does not include a way or place under the jurisdiction of a federal governmental agency, which lies on national forest or private lands, is open to public use, and for which the cost of maintenance of such way or place is borne or contributed to directly by any users thereof.
600. A “through highway” is a highway or portion thereof at the entrance to which vehicular traffic from intersecting highways is regulated by stop signs or traffic control signals or is controlled when entering on a separated right-turn roadway by a yield-right-of-way sign.
611. A “toll highway” or “toll road” is a publicly owned way or place open to the use of the public for purposes of vehicular travel which use requires the payment of a fee.
620. The term “traffic” includes pedestrians, ridden animals, vehicles, street cars, and other conveyances, either singly or together, while using any highway for purposes of travel.
625. A “traffic officer” is any member of the California Highway Patrol, or any peace officer who is on duty for the exclusive or main purpose of enforcing Division 10 (commencing with Section 20000) or 11 (commencing with Section 21000).
630. A “trailer” is a vehicle designed for carrying persons or property on its own structure and for being drawn by a motor vehicle and so constructed that no part of its weight rests upon any other vehicle. As used in Division 15 (commencing with Section 35000), “trailer” includes a semitrailer when used in conjunction with an auxiliary dolly, if the auxiliary dolly is of a type constructed to replace the function of the drawbar and the front axle or axles of a trailer.
665.5. A “U-turn” is the turning of a vehicle upon a highway so as to proceed in the opposite direction whether accomplished by one continuous movement or not.
670. A “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.
(Rights and Duties of Cyclists)
(1) A person riding a bicycle or operating a pedicab upon a highway has all the rights and is subject to all the provisions applicable to the driver of a vehicle by this division, including, but not limited to, provisions concerning driving under the influence of alcoholic beverages or drugs, and by Division 10 (commencing with Section 20000) [Accidents and Accident Reports] , Section 27400 [Headsets and Earplugs], Division 16.7 (commencing with Section 39000) [Registration and Licensing of Bicycles], Division 17 (commencing with Section 40000.1) [Offenses and Prosecution], and Division 18 (commencing with Section 42000) [Penalties and Disposition of Fees, Fines, and Forfeitures], except those provisions which by their very nature can have no application.
(2) A person operating a bicycle on a Class I bikeway, as defined in subdivision (a) of Section 890.4 of the Streets and Highways Code, has all the rights and is subject to all the provisions applicable to the driver of a vehicle pursuant to Section 20001 [Accidents and Accident Reports], except those provisions which by their very nature can have no application.
(1) A peace officer, as defined in Chapter 4.5 (commencing with Section 830) of Title 3 of Part 2 of the Penal Code, operating a bicycle during the course of his or her duties is exempt from the requirements of subdivision (a), except as those requirements relate to driving under the influence of alcoholic beverages or drugs, if the bicycle is being operated under any of the following circumstances:
(A) In response to an emergency call.
(B) While engaged in rescue operations.
(C) In the immediate pursuit of an actual or suspected violator of the law.
(2) This subdivision does not relieve a peace officer from the duty to operate a bicycle with due regard for the safety of all persons using the highway.
(Alcohol and Drugs)
Notwithstanding Section 21200, it is unlawful for any person to ride a bicycle upon a highway while under the influence of an alcoholic beverage or any drug, or under the combined influence of an alcoholic beverage and any drug. Any person arrested for a violation of this section may request to have a chemical test made of the person’s blood, breath, or urine for the purpose of determining the alcoholic or drug content of that person’s blood pursuant to Section 23612 , and, if so requested, the arresting officer shall have the test performed. A conviction of a violation of this section shall be punished by a fine of not more than two hundred fifty dollars ($250). Violations of this section are subject to Section 13202.5 .
(Required and Prohibited Equipment)
(a) No person shall operate a bicycle on a roadway unless it is equipped with a brake that will enable the operator to make one braked wheel skid on dry, level, clean pavement.
(b) No person shall operate on the highway a bicycle equipped with handlebars so raised that the operator must elevate his or her hands above the level of his or her shoulders in order to grasp the normal steering grip area.
(c) No person shall operate upon a highway a bicycle that is of a size that prevents the operator from safely stopping the bicycle, supporting it in an upright position with at least one foot on the ground, and restarting it in a safe manner.
(d) A bicycle operated during darkness upon a highway, a sidewalk where bicycle operation is not prohibited by the local jurisdiction, or a bikeway, as defined in Section 890.4 of the Streets and Highways Code, shall be equipped with all of the following:
(1) A lamp emitting a white light that, while the bicycle is in motion, illuminates the highway, sidewalk, or bikeway in front of the bicyclist and is visible from a distance of 300 feet in front and from the sides of the bicycle.
(2) A red reflector or a solid or flashing red light with a built-in reflector on the rear that shall be visible from a distance of 500 feet to the rear when directly in front of lawful upper beams of headlamps on a motor vehicle.
(3) A white or yellow reflector on each pedal, shoe, or ankle visible from the front and rear of the bicycle from a distance of 200 feet.
(4) A white or yellow reflector on each side forward of the center of the bicycle, and a white or red reflector on each side to the rear of the center of the bicycle, except that bicycles that are equipped with reflectorized tires on the front and the rear need not be equipped with these side reflectors. The reflectors and reflectorized tires shall be of a type meeting requirements established by the department.
(e) A lamp or lamp combination, emitting a white light, attached to the operator and visible from a distance of 300 feet in front and from the sides of the bicycle, may be used in lieu of the lamp required by paragraph (1) of subdivision (d).
(a) A bicycle or motorized bicycle used by a peace officer, as defined in Section 830.1 of, subdivision (a), (b), (c), (d), (e), (f), (g), or (i) of Section 830.2 of, subdivision (b) or (d) of Section 830.31 of, subdivision (a) or (b) of Section 830.32 of, Section 830.33 of, subdivision (a) of Section 830.36 of, subdivision (a) of Section 830.4 of, or Section 830.6 of, the Penal Code, in the performance of the peace officer’s duties, may display a steady or flashing blue warning light that is visible from the front, sides, or rear of the bicycle or motorized bicycle.
(b) No person shall display a steady or flashing blue warning light on a bicycle or motorized bicycle except as authorized under subdivision (a).
(a) No person shall sell, or offer for sale, a reflex reflector or reflectorized tire of a type required on a bicycle unless it meets requirements established by the department. If there exists a federal Consumer Product Safety Commission regulation applicable to bicycle reflectors, the provisions of that regulation shall prevail over provisions of this code or requirements established by the department pursuant to this code relative to bicycle reflectors.
(b) No person shall sell, or offer for sale, a new bicycle that is not equipped with a red reflector on the rear, a white or yellow reflector on each pedal visible from the front and rear of the bicycle, a white or yellow reflector on each side forward of the center of the bicycle, and a white or red reflector on each side to the rear of the center of the bicycle, except that bicycles which are equipped with reflectorized tires on the front and rear need not be equipped with these side reflectors.
(c) Area reflectorizing material meeting the requirements of Section 25500 may be used on a bicycle.
(Position on the Roadway)
(a) Any person operating a bicycle upon a roadway at a speed less than the normal speed of traffic moving in the same direction at that time shall ride as close as practicable to the right-hand curb or edge of the roadway except under any of the following situations:
(1) When overtaking and passing another bicycle or vehicle proceeding in the same direction.
(2) When preparing for a left turn at an intersection or into a
private road or driveway.
(3) When reasonably necessary to avoid conditions (including, but not limited to, fixed or moving objects, vehicles, bicycles, pedestrians, animals, surface hazards, or substandard width lanes) that make it unsafe to continue along the right-hand curb or edge, subject to the provisions of Section 21656 . For purposes of this section, a “substandard width lane” is a lane that is too narrow for a bicycle and a vehicle to travel safely side by side within the lane.
(4) When approaching a place where a right turn is authorized.
(b) Any person operating a bicycle upon a roadway of a highway, which highway carries traffic in one direction only and has two or more marked traffic lanes, may ride as near the left-hand curb or edge of that roadway as practicable.
(General Operation of the Bicycle)
No person riding upon any motorcycle, motorized bicycle, bicycle, coaster, roller skates, sled, or toy vehicle shall attach the same or himself to any streetcar or vehicle on the roadway.
(a) A person operating a bicycle upon a highway shall not ride other than upon or astride a permanent and regular seat attached thereto, unless the bicycle was designed by the manufacturer to be ridden without a seat.
(b) An operator shall not allow a person riding as a passenger, and a person shall not ride as a passenger, on a bicycle upon a highway other than upon or astride a separate seat attached thereto. If the passenger is four years of age or younger, or weighs 40 pounds or less, the seat shall have adequate provision for retaining the passenger in place and for protecting the passenger from the moving parts of the bicycle.
No person operating a bicycle shall carry any package, bundle or article which prevents the operator from keeping at least one hand upon the handlebars.
This chapter does not prevent local authorities, by ordinance, from regulating the registration of bicycles and the parking and operation of bicycles on pedestrian or bicycle facilities, provided such regulation is not in conflict with the provisions of this code.
(a) This chapter does not prohibit local authorities from establishing, by ordinance or resolution, bicycle lanes separated from any vehicular lanes upon highways, other than state highways as defined in Section 24 of the Streets and Highways Code and county highways established pursuant to Article 5 (commencing with Section 1720) of Chapter 9 of Division 2 of the Streets and Highways Code.
(b) Bicycle lanes established pursuant to this section shall be constructed in compliance with Section 891 of the Streets and Highways Code.
(Driving or Riding in Bicycle Lanes)
(a) Whenever a bicycle lane has been established on a roadway pursuant to Section 21207, any person operating a bicycle upon the roadway at a speed less than the normal speed of traffic moving in the same direction at that time shall ride within the bicycle lane, except that the person may move out of the lane under any of the following situations:
(1) When overtaking and passing another bicycle, vehicle, or pedestrian within the lane or about to enter the lane if the overtaking and passing cannot be done safely within the lane.
(2) When preparing for a left turn at an intersection or into a private road or driveway.
(3) When reasonably necessary to leave the bicycle lane to avoid debris or other hazardous conditions.
(4) When approaching a place where a right turn is authorized.
(b) No person operating a bicycle shall leave a bicycle lane until the movement can be made with reasonable safety and then only after giving an appropriate signal in the manner provided in Chapter 6 (commencing with Section 22100) in the event that any vehicle may be affected by the movement.