Bike Law FAQs

Bicycle traffic laws of Washington




Bike Law FAQs


Question: What traffic laws apply to bicyclists?

When ridden on any roadway a bicycle rider has all of the rights and responsibilities of any vehicle (RCW 46.61.755). Unless bicycles are specifically excepted, all traffic laws and rules apply to bicycles. Bicyclists who violate traffic laws are subject to a citation.
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Question: Should bicyclists ride with the flow of traffic or facing traffic?

Bicyclists should always ride with the flow of traffic (RCW 46.61.100). The law requires this. Riding with the flow of traffic greatly increases safety by making bicycles visible and predictable to other drivers. Riding against traffic is leading cause of bicycle accidents.
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Question: What position in the lane should a bicyclist use?

1) Bicyclists traveling at the speed of traffic may use the middle of the lane.
2) A bicyclist traveling at a speed less than the normal flow of traffic should ride as near to the right side of the right through lane as is safe except when a) preparing to turn b) when passing another bicycle or vehicle or c) on a one- way street, where it is legal to ride on the left (RCW 46.61.770).
3) Bicyclists should ride in the middle of the right through lane when that lane is too narrow to permit side-by-side sharing with motor vehicles, and when hazards (such as drain grates or a rough edge) prevent riding on the shoulder or along the edge of the lane.
4) Bicyclists may ride on the road shoulder, but this is required only on limited- access highways, such as freeways.
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Question: May bicyclists ride side-by-side?

Yes. State law allows bicyclists to ride two abreast (RCW 46.61.770).
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Question: What equipment is required on bicycles used at night?

A white front light and a red rear reflector are required (RCW 46.61.780). In addition, a red rear lamp and/or flashing amber light is allowed. Use of reflectors alone does not satisfy state requirements.
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Question: Where is bicycling not allowed?

1) On sidewalks within business districts (RCW 46.90.555) if adopted by local government. 2) On designated sections of our state's limited-access highway system. 3) Where forbidden by local ordinance.
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Question: Are bicyclists required to use a bikepath adjacent to a roadway?

No. A bicyclist may choose either a path or the roadway. Some paths are not well suited to cyclists' needs, particularly fast riders or when crowded with other users.
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Question: Are children required to observe bicycle traffic laws?

Yes. Bicyclists of all ages are required to follow the same traffic laws and may by cited for violations. In addition, a parent or guardian shall not knowingly permit bicycle traffic violations by their ward (RCW 46.61.700).
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Bicycle traffic laws of Washington


RCW 46.04.071 Definition of "Bicycle"

"Bicycle means every device propelled solely by human power upon which a person or persons may ride, having two tandem wheels either of which is sixteen inches or more in diameter, or three wheels, any of which is more than twenty inches in diameter.
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RCW 46.04.200 Definition of "Hours of Darkness"

"Hours of Darkness" means the hours from one-half hour after sunset to one- half hour before sunrise, and any other time when persons or objects may not be clearly discernible at a distance of five hundred feet.
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RCW 46.04.431 Definition of "Highway"

"Highway" means the entire width between the boundary lines of every way publicly maintained when any part thereof is open to the use of the public for purposes of vehicular travel.
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RCW 46.04.500 Definition of "Roadway"

"Roadway" means that portion of a highway improved, designed or ordinarily used for vehicular travel, exclusive of the sidewalk or shoulder even though such sidewalk or shoulder is used by persons riding bicycles. In the event a highway includes two or more separated roadways, the term "roadway" shall refer to any such roadway separately but shall not refer to all such roadways collectively.
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RCW 46.04.670 Definition of "Vehicle"

"Vehicle" includes every device capable of being moved upon a public highway and in, upon, or by which any persons or property is or may be transported or drawn upon a public highway, excepting devices moved by human or animal power or used exclusively upon stationary rails or tracks, except that mopeds shall be considered vehicles or motor vehicles for the purposes of chapter 46.12 RCW, but not for the purpose of chapter 46.70 RCW.
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RCW 46.61.160 Restrictions on use of limited-access highway -- use by bicyclists

The department of transportation may by order, and local authorities may by ordinance or resolution, with respect to any limited access highway under their respective jurisdictions, prohibit the use of any such highway by funeral processions, or parades, pedestrians, bicycles or other non-motorized traffic, or by any person operating a motor-driven cycle. Bicyclists may use the right shoulder of limited access highways except where prohibited. The department of transportation may by order, and local authorities may by ordinance or resolution, with respect to any limited-access highway under their respective jurisdictions prohibit the use of the shoulders of any such highways where such use is deemed to be unsafe.
The department of transportation or the local authority adopting any such prohibitory regulation shall erect an maintain official traffic control devices on the limited-access roadway on which such regulations are applicable, and when so erected no persons may disobey the restrictions states on such devices.
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RCW 46.61.502 Driving while under influence of intoxicating liquor or drug -- What constitutes

A person is guilty of driving while under the influence of intoxicating liquor or any drug if he drives a vehicle within this state while: (1) He has 0.10 percent or more by weight of alcohol in his blood as shown by chemical analysis of his breath, blood or other bodily substance made under RCW 46.61.506 as now or hereafter amended; or (2) He is under the influence of or affected by intoxicating liquor or any drug; or (3) He is under the combined influence of or affected by intoxicating liquor and any drug.
The fact that any person charged with a violation of this section is or has been entitled to use such drug under the laws of this state shall not constitute a defense against any charge of violating this section.
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RCW 46.61.700 Parent or guardian shall not authorize or permit violation by a child or ward.

The parent of any child an the guardian of any ward shall not authorize or knowingly permit any such child or ward to violate any of the provisions of this chapter.
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RCW 46.61.750 Effect of regulations — Penalty

1. It is a traffic infraction for any person to do any act forbidden or fail to perform any act required in RCW 46.61.750 through 46.61.780.
2. These regulations applicable to bicycles apply whenever a bicycle is operated upon a highway or upon a bicycle path, subject to those exceptions stated herein.
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RCW 46.61.755 Traffic laws apply to persons riding bicycles

Every person riding a bicycle upon a roadway shall be granted all of the rights and shall be subject to all of the duties applicable to the driver of a vehicle by this chapter, except as to special regulations in RCW 46.61.750 through 46.61.780 and except as to those provisions of this chapter which by their nature can have no application.
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RCW 46.61.758 Hand Signals

All hand signals required of persons operating bicycles shall be given in the following manner:
1. Left turn. Left hand an arm extended horizontally beyond the side of the bicycle;
2. Right turn. Left hand and arm extended upward beyond the side of the bicycle, or right hand and arm extended horizontally to the right side of the bicycle;
3. Stop or decrease speed. Left hand and arm extended downward beyond the side of the bicycle. The hand signals required by this section shall be given before initiation of a turn. [ed. note: hand signals should only be used when it is safe to remove a hand from the bicycle handlebars.]
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RCW 46.61.760 Riding on bicycles

1. A person propelling a bicycle shall not ride other than upon or astride a permanent and regular seat attached thereto. 2. No bicycle shall be used to carry more persons at one time than the number of which it is designed and equipped.
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RCW 46.61.765 Clinging to vehicles

No person riding upon any bicycle, coaster, roller skates, sled or toy vehicle shall attach the same or himself to any vehicle upon a roadway.
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RCW 46.61.770 Riding on roadways and bicycle paths

1. Every person operating a bicycle upon a roadway at a rate of speed less than the normal flow of traffic at the particular time and place shall ride as near as near to the right side of the right through lane as is safe except as may be appropriate while preparing to make or while making turning movements, or while overtaking and passing another bicycle or vehicle preceding in the same direction. A person operating a bicycle upon a roadway or highway other than a limited-access highway, which roadway or highway carried traffic in one direction only and has two or more marked traffic lanes, may ride as near to the left side of the left through lane as is safe. A person operating a bicycle upon a roadway may use the shoulder of the roadway or any specially designated bicycled lane if such exists.
2. Persons riding bicycles upon a roadway shall not ride more than two abreast except on paths or part of the roadway set aside for the exclusive use of bicycles.
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RCW 46.61.775 Carrying articles

No person operating a bicycle shall carry any package, bundle or article which prevents the driver from keeping at least one hand upon the handlebars.
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RCW 46.61.780 Lamps and other equipment on bicycles

1. Every bicycle when used during the hours of darkness as defined in RCW 46.37.020 shall be equipped with a lamp on the front which shall emit a white light visible from a distance of at least five hundred feet to the front and with a red reflector on the rear of a type approved by the state commission on equipment which shall be visible from all distances from one hundred feet to six hundred feet to the rear when directly in front of lawful lower beams of head lamps on a motor vehicle. A lamp emitting a red light visible from a distance of five hundred feet to the rear may be used in addition to the red reflector.
2. Every bicycle shall be equipped with a brake which will enable the operator to make the braked wheel skid on dry, level, clean pavement.
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Above taken from the King County website.