reglab/statecodes huggingface dataset:
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.120 - Visibility of reflectors, clearance lamps, identification lamps, and side marker lamps.

RCW 46.37.120
Visibility of reflectors, clearance lamps, identification lamps, and side marker lamps.
(1) Every reflector upon any vehicle referred to in RCW 46.37.090 shall be of such size and characteristics and so maintained as to be readily visible at nighttime from all distances within six hundred feet to one hundred feet from the vehicle when directly in front of lawful lower beams of head lamps, except that the visibility for reflectors on vehicles manufactured or assembled prior to January 1, 1970, shall be measured in front of the lawful upper beams of headlamps. Reflectors required to be mounted on the sides of the vehicle shall reflect the required color of light to the sides, and those mounted on the rear shall reflect a red color to the rear.
(2) Front and rear clearance lamps and identification lamps shall be capable of being seen and distinguished under normal atmospheric conditions at the times lights are required at all distances between five hundred feet and fifty feet from the front and rear, respectively, of the vehicle.
(3) Side marker lamps shall be capable of being seen and distinguished under normal atmospheric conditions at the times lights are required at all distances between five hundred feet and fifty feet from the side of the vehicle on which mounted.
[ 1977 ex.s. c 355 § 11; 1963 c 154 § 8; 1961 c 12 § 46.37.120. Prior: 1955 c 269 § 12; prior: 1947 c 267 § 3, part; 1937 c 189 § 17, part; Rem. Supp. 1947 § 6360-17, part; RCW 46.40.040, part; 1933 c 156 §§ 5, part, 6, part; 1929 c 178 §§ 7, part, 8, part; 1927 c 309 §§ 27, part, 28, part; RRS §§ 6362-27, part, 6362-28, part; 1921 c 96 § 22, part; 1919 c 59 § 10, part; 1917 c 155 § 15, part.]
NOTES:
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
Effective date—1969 ex.s. c 281: "This 1969 amendatory act is necessary for the immediate preservation of the public peace, health and safety, the support of the state government and its existing public institutions, and except for sections 32 and 54 of this 1969 amendatory act shall take effect immediately. Sections 32 and 54 of this 1969 amendatory act shall take effect January 1, 1970." [ 1969 ex.s. c 281 § 63.]
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.130 - Obstructed lights not required.

RCW 46.37.130
Obstructed lights not required.
Whenever motor and other vehicles are operated in combination during the time that lights are required, any lamp (except tail lamps) need not be lighted which, by reason of its location on a vehicle of the combination, would be obscured by another vehicle of the combination, but this shall not affect the requirement that lighted clearance lamps be displayed on the front of the foremost vehicle required to have clearance lamps, nor that all lights required on the rear of the rearmost vehicle of any combination shall be lighted.
[ 1961 c 12 § 46.37.130. Prior: 1955 c 269 § 13.]
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.140 - Lamps, reflectors, and flags on projecting load.

RCW 46.37.140
Lamps, reflectors, and flags on projecting load.
(1) On any vehicle having a load that extends more than four inches beyond its sides or more than four feet beyond its rear, there must be displayed red or orange fluorescent warning flags, not less than eighteen inches square, marking the extremities of such loads.
(2) Whenever the load upon any vehicle extends to the rear four feet or more beyond the bed or body of the vehicle, there must be displayed at the extreme rear end of the load at the times specified in RCW 46.37.020:
(a) Two red lamps, visible from a distance of at least five hundred feet to the rear;
(b) Two red reflectors, visible at night from all distances within six hundred feet to one hundred feet to the rear when directly in front of lawful lower beams of headlamps, and located so as to indicate maximum width; and
(c) A red lamp on each side, visible from a distance of at least five hundred feet to the side, and located so as to indicate maximum overhang.
[ 2014 c 154 § 1; 1977 ex.s. c 355 § 12; 1963 c 154 § 9; 1961 c 12 § 46.37.140. Prior: 1955 c 269 § 14; prior: 1937 c 189 § 18; RRS § 6360-18; RCW 46.40.050; 1929 c 178 § 11, part; 1927 c 309 § 32, part, RRS § 6362-32, part; 1921 c 96 § 22, part; 1919 c 59 § 10, part; 1917 c 155 § 15, part.]
NOTES:
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.150 - Lamps on vehicles—Parked or stopped vehicles, lighting requirements.

RCW 46.37.150
Lamps on vehicles—Parked or stopped vehicles, lighting requirements.
(1) Every vehicle shall be equipped with one or more lamps, which, when lighted, shall display a white or amber light visible from a distance of one thousand feet to the front of the vehicle, and a red light visible from a distance of one thousand feet to the rear of the vehicle. The location of said lamp or lamps shall always be such that at least one lamp or combination of lamps meeting the requirements of this section is installed as near as practicable to the side of the vehicle which is closest to passing traffic.
(2) Whenever a vehicle is lawfully parked upon a street or highway during the hours between a half hour after sunset and a half hour before sunrise and in the event there is sufficient light to reveal any person or object within a distance of one thousand feet upon such street or highway, no lights need be displayed upon such parked vehicle.
(3) Whenever a vehicle is parked or stopped upon a roadway or shoulder adjacent thereto, outside an incorporated city or town, whether attended or unattended, during the hours between a half hour after sunset and a half hour before sunrise and there is insufficient light to reveal any person or object within a distance of one thousand feet upon such highway, such vehicle so parked or stopped shall be equipped with and shall display lamps meeting the requirements of subsection (1) of this section.
(4) Any lighted head lamps upon a parked vehicle shall be depressed or dimmed.
[ 1977 ex.s. c 355 § 13; 1963 c 154 § 10; 1961 c 12 § 46.37.150. Prior: 1955 c 269 § 15; prior: 1937 c 189 § 19; RRS § 6360-19; RCW 46.40.060; 1933 c 156 § 8; 1929 c 178 § 10; 1927 c 309 § 31; RRS § 6362-31.]
NOTES:
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.170 - Lamps and reflectors on other vehicles and equipment—Slow-moving vehicle emblem on animal-drawn vehicles.

RCW 46.37.170
Lamps and reflectors on other vehicles and equipment—Slow-moving vehicle emblem on animal-drawn vehicles.
(1) Every vehicle, including animal-drawn vehicles and vehicles referred to in *RCW 46.37.010(3), not specifically required by the provisions of RCW 46.37.020 through 46.37.330 to be equipped with lamps, or other lighting devices, shall at all times specified in RCW 46.37.020 be equipped with at least one lamp displaying a white light visible from a distance of not less than one thousand feet to the front of said vehicle, and shall also be equipped with two lamps displaying red light visible from a distance of not less than one thousand feet to the rear of said vehicle, or as an alternative, one lamp displaying a red light visible from a distance of not less than one thousand feet to the rear and two red reflectors visible from all distances of six hundred to one hundred feet to the rear when illuminated by the lawful lower beams of head lamps.
(2) After June 1, 1978, every animal-drawn vehicle shall at all times be equipped with a slow-moving vehicle emblem complying with RCW 46.37.160(7).
[ 1977 ex.s. c 355 § 15; 1963 c 154 § 12; 1961 c 12 § 46.37.170. Prior: 1955 c 269 § 17; prior: 1937 c 189 § 21; RRS § 6360-21; RCW 46.40.080; 1927 c 309 § 34; 1921 c 96 § 22, part; 1917 c 40 § 1; RRS § 6362-34.]
NOTES:
*Reviser's note: RCW 46.37.010 was amended by 2006 c 306 § 1, changing subsection (3) to subsection (4).
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.180 - Spot lamps and auxiliary lamps.

RCW 46.37.180
Spot lamps and auxiliary lamps.
(1) Spot lamps. Any motor vehicle may be equipped with not to exceed two spot lamps and every lighted spot lamp shall be so aimed and used that no part of the high intensity portion of the beam will strike the windshield, or any windows, mirror, or occupant of another vehicle in use.
(2) Fog lamps. Any motor vehicle may be equipped with not to exceed two fog lamps mounted on the front at a height of not less than twelve inches nor more than thirty inches above the level surface upon which the vehicle stands and so aimed that when the vehicle is not loaded none of the high intensity portion of the light to the left of the center of the vehicle shall at a distance of twenty-five feet ahead project higher than a level of four inches below the level of the center of the lamp from which it comes. Lighted fog lamps meeting the above requirements may be used with lower head lamp beams as specified in RCW 46.37.220.
(3) Auxiliary passing lamps. Any motor vehicle may be equipped with not to exceed two auxiliary passing lamps mounted on the front at a height not less than twenty-four inches nor more than forty-two inches above the level surface upon which the vehicle stands. The provisions of RCW 46.37.220 shall apply to any combinations of head lamps and auxiliary passing lamps.
(4) Auxiliary driving lamps. Any motor vehicle may be equipped with not to exceed two auxiliary driving lamps mounted on the front at a height not less than sixteen inches nor more than forty-two inches above the level surface upon which the vehicle stands. The provisions of RCW 46.37.220 shall apply to any combination of head lamps and auxiliary driving lamps.
[ 1963 c 154 § 13; 1961 c 12 § 46.37.180. Prior: 1955 c 269 § 18; prior: 1949 c 157 § 1; Rem. Supp. 1949 § 6360-22a; RCW 46.40.110, 46.40.120.]
NOTES:
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.184 - Red flashing lights on fire department vehicles—Rear-facing blue lights—Combination.

RCW 46.37.184
Red flashing lights on fire department vehicles—Rear-facing blue lights—Combination.
All fire department vehicles in service shall be identified by red lights of an intermittent flashing type, visible from both front and rear for a distance of 500 feet under normal atmospheric conditions. Such red flashing lights shall be well separated from the headlights so that they will not black out when headlights are on. Such red flashing lights shall be in operation at all times when such vehicle is on emergency status. Fire department vehicles may also operate rear-facing blue lights. The combination of red and blue lights shall only be used at the scene of the emergency.
[ 2022 c 279 § 1; 1961 c 12 § 46.37.184. Prior: 1953 c 161 § 1. Formerly RCW 46.40.220.]
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.185 - Green light on firefighters' private cars.

RCW 46.37.185
Green light on firefighters' private cars.
Firefighters, when approved by the chief of their respective service, shall be authorized to use a green light on the front of their private cars when on emergency duty only. Such green light shall be visible for a distance of two hundred feet under normal atmospheric conditions and shall be of a type and mounting approved by the Washington state patrol. The use of the green light shall only be for the purpose of identification and the operator of a vehicle so equipped shall not be entitled to any of the privileges provided in RCW 46.61.035 for the operators of authorized emergency vehicles.
[ 2007 c 218 § 73; 1987 c 330 § 709; 1971 ex.s. c 92 § 3; 1961 c 12 § 46.37.185. Prior: 1953 c 161 § 2. Formerly RCW 46.40.230.]
NOTES:
Intent—Finding—2007 c 218: See note following RCW 41.08.020.
Construction—Application of rules—Severability—1987 c 330: See notes following RCW 28B.12.050.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.186 - Fire department sign or plate on private car.

RCW 46.37.186
Fire department sign or plate on private car.
(1) No private vehicle, bearing a sign or plate indicating a fire department connection, shall be driven or operated on any public highway, except when the owner thereof is a bona fide member of a fire department.
(2) Any sign or plate indicating fire department connection on a private car of any member of a fire department shall include the name of the municipality or fire department organization to which the owner belongs.
[ 1961 c 12 § 46.37.186. Prior: 1953 c 161 § 3. Formerly RCW 46.40.240.]
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.187 - Green light, sign or plate—Identification card required.

RCW 46.37.187
Green light, sign or plate—Identification card required.
Any individual displaying a green light as authorized in RCW 46.37.185, or a sign or plate as authorized in RCW 46.37.186, shall also carry attached to a convenient location on the private vehicle to which the green light or sign or plate is attached, an identification card showing the name of the owner of said vehicle, the organization to which he or she belongs and bearing the signature of the chief of the service involved.
[ 1971 ex.s. c 92 § 2; 1961 c 12 § 46.37.187. Prior: 1953 c 161 § 4. Formerly RCW 46.40.250.]
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.188 - Penalty for violation of RCW 46.37.184 through 46.37.188.

RCW 46.37.188
Penalty for violation of RCW 46.37.184 through 46.37.188.
Every violation of RCW 46.37.184, 46.37.185, 46.37.186, or 46.37.187 is a traffic infraction.
[ 1979 ex.s. c 136 § 70; 1961 c 12 § 46.37.188. Prior: 1953 c 161 § 5. Formerly RCW 46.40.260.]
NOTES:
Effective date—Severability—1979 ex.s. c 136: See notes following RCW 46.63.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.190 - Warning devices on vehicles—Other drivers yield and stop.

RCW 46.37.190
Warning devices on vehicles—Other drivers yield and stop.
(1) Every authorized emergency vehicle and organ transport vehicle shall, in addition to any other equipment and distinctive marking required by this chapter, be equipped with at least one lamp capable of displaying a red light visible from at least 500 feet in normal sunlight and a siren capable of giving an audible signal.
(2) Every school bus and private carrier bus shall, in addition to any other equipment and distinctive markings required by this chapter, be equipped with a "stop" signal upon a background not less than 14 by 18 inches displaying the word "stop" in letters of distinctly contrasting colors not less than five and nine-tenths inches high, and shall further be equipped with signal lamps mounted as high and as widely spaced laterally as practicable, which shall be capable of displaying to the front two alternately flashing red lights located at the same level and to the rear two alternately flashing red lights located at the same level and these lights shall have sufficient intensity to be visible at 500 feet in normal sunlight.
(3) Vehicles operated by public agencies whose law enforcement duties include the authority to stop and detain motor vehicles on the public highways of the state may be equipped with a siren and lights of a color and type designated by the state patrol for that purpose. The state patrol may prohibit the use of these sirens and lights on vehicles other than the vehicles described in this subsection.
(4) The lights described in this section shall not be mounted nor used on any vehicle other than a school bus, a private carrier bus, an authorized emergency or law enforcement vehicle, or an organ transport vehicle.
(5) The use of the signal equipment described in this section and RCW 46.37.670, except the signal preemption devices used by public transit vehicles and department of transportation, city, or county maintenance vehicles that are not used in conjunction with emergency equipment, shall impose upon drivers of other vehicles the obligation to yield right-of-way and stop as prescribed in RCW 46.61.210, 46.61.370, and 46.61.350.
[ 2023 c 290 § 3; 2020 c 95 § 1; 2005 c 183 § 8; 1993 c 401 § 2; 1987 c 330 § 710; 1985 c 331 § 1; 1982 c 101 § 1; 1971 ex.s. c 92 § 1; 1970 ex.s. c 100 § 5; 1965 ex.s. c 155 § 53; 1963 c 154 § 14; 1961 c 12 § 46.37.190. Prior: 1957 c 66 § 1; 1955 c 269 § 19.]
NOTES:
Rules of court: Monetary penalty schedule—IRLJ 6.2.
Construction—Application of rules—Severability—1987 c 330: See notes following RCW 28B.12.050.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.193 - Signs on buses.

RCW 46.37.193
Signs on buses.
Every school bus and private carrier bus, in addition to any other equipment or distinctive markings required by this chapter, shall bear upon the front and rear thereof, above the windows thereof, plainly visible signs containing only the words "school bus" on a school bus and only the words "private carrier bus" on a private carrier bus in letters not less than eight inches in height, and in addition shall be equipped with visual signals meeting the requirements of RCW 46.37.190. School districts may affix signs designed according to RCW 46.61.380 informing motorists of the monetary penalty for failure to stop for a school bus when the visual signals are activated.
However, a private carrier bus that regularly transports children to and from a private school or in connection with school activities may display the words "school bus" in a manner provided in this section and need not comply with the requirements set forth in the most recent edition of "Specifications for School Buses" published by the superintendent of public instruction.
[ 1997 c 80 § 3; 1995 c 141 § 2; 1990 c 241 § 10.]
NOTES:
School bus markings: RCW 46.61.380.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.194 - Authorized emergency vehicles—State patrol authority, maintenance, and applicant and driver screening.

RCW 46.37.194
Authorized emergency vehicles—State patrol authority, maintenance, and applicant and driver screening.
The state patrol may make rules and regulations relating to authorized emergency vehicles and shall test and approve sirens and emergency vehicle lamps to be used on such vehicles. The equipment and standards review unit shall require a record check of all applicants and drivers for an authorized emergency vehicle permit through the Washington state patrol criminal identification section pursuant to RCW 10.97.050 and through the federal bureau of investigation before issuing an authorized emergency vehicle permit. The record check shall include a fingerprint check using a complete Washington state criminal identification fingerprint card. When necessary, applicants and drivers may be employed on a conditional basis pending completion of the investigation. Pursuant to RCW 43.43.742, the applicant, driver, or employer shall pay costs associated with the record check.
[ 2006 c 27 § 1; 1987 c 330 § 711; 1961 c 12 § 46.37.194. Prior: 1957 c 66 § 3.]
NOTES:
Construction—Application of rules—Severability—1987 c 330: See notes following RCW 28B.12.050.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.196 - Red lights on emergency tow trucks—Rear facing blue lights.

RCW 46.37.196
Red lights on emergency tow trucks—Rear facing blue lights.
All emergency tow trucks shall be identified by an intermittent or revolving red light capable of 360 degree visibility at a distance of 500 feet under normal atmospheric conditions. The emergency tow trucks may also operate rear facing blue lights for use only at the scene of an emergency or accident. The red lights may be used when the tow truck is reentering the roadway from the scene of an emergency or accident for a reasonable distance to reach operating speed from the scene, and the combination of red and blue lights may be used only at the scene of an emergency or accident. It is unlawful to use the combination of lights when traveling to or from the scene of an accident or for any other purpose.
[ 2023 c 33 § 2; 1977 ex.s. c 355 § 16.]
NOTES:
Short title—2023 c 33: "This act may be known and cited as the Arthur Anderson and Raymond Mitchell tow operators safety act." [ 2023 c 33 § 1.]
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.200 - Stop lamps and electric turn signals displayed.

RCW 46.37.200
Stop lamps and electric turn signals displayed.
(1) Any vehicle may be equipped and when required under this chapter shall be equipped with a stop lamp or lamps on the rear of the vehicle which shall display a red or amber light, or any shade of color between red and amber, visible from a distance of not less than one hundred feet and on any vehicle manufactured or assembled after January 1, 1964, three hundred feet to the rear in normal sunlight, and which shall be actuated upon application of a service brake, and which may but need not be incorporated with one or more other rear lamps. However, for commercial motor vehicles defined in RCW 46.32.005, stop lamps must be red.
(2) Any vehicle may be equipped and when required under RCW 46.37.070(2) shall be equipped with electric turn signals which shall indicate an intention to turn by flashing lights showing to the front and rear of a vehicle or on a combination of vehicles on the side of the vehicle or combination toward which the turn is to be made. The lamps showing to the front shall be mounted on the same level and as widely spaced laterally as practicable and, when signaling, shall emit amber light: PROVIDED, That on any vehicle manufactured prior to January 1, 1969, the lamps showing to the front may emit white or amber light, or any shade of light between white and amber. The lamp showing to the rear shall be mounted on the same level and as widely spaced laterally as practicable, and, when signaling, shall emit a red or amber light, or any shade of color between red and amber. Turn signal lamps shall be visible from a distance of not less than five hundred feet to the front and rear in normal sunlight. Turn signal lamps may, but need not be, incorporated in other lamps on the vehicle.
(3) Any vehicle may be equipped and when required under this chapter shall be equipped with a center high-mounted stop lamp mounted on the center line of the rear of the vehicle. These stop lamps shall display a red light visible from a distance of not less than three hundred feet to the rear in normal sunlight, and shall be actuated upon application of a service brake, and may not be incorporated with any other rear lamps.
[ 2019 c 321 § 2; 2006 c 306 § 3; 1977 ex.s. c 355 § 17; 1963 c 154 § 15; 1961 c 12 § 46.37.200. Prior: 1955 c 269 § 20; prior: 1953 c 248 § 2, part; 1947 c 267 § 4, part; 1937 c 189 § 23, part; Rem. Supp. 1947 § 6360-23, part; RCW 46.40.090, part; 1929 c 178 § 1, part; 1927 c 309 § 15, part; RRS § 6362-15.]
NOTES:
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.215 - Hazard warning lamps.

RCW 46.37.215
Hazard warning lamps.
(1) Any vehicle may be equipped with lamps for the purpose of warning other operators of other vehicles of the presence of a vehicular traffic hazard requiring the exercise of unusual care in approaching, overtaking, or passing.
(2) After June 1, 1978, every motor home, bus, truck, truck tractor, trailer, semitrailer, or pole trailer eighty inches or more in overall width or thirty feet or more in overall length shall be equipped with lamps meeting the requirements of this section.
(3) Vehicular hazard warning signal lamps used to display such warning to the front shall be mounted at the same level and as widely spaced laterally as practicable, and shall display simultaneously flashing amber light: PROVIDED, That on any vehicle manufactured prior to January 1, 1969, the lamps showing to the front may display simultaneously flashing white or amber lights, or any shade of color between white and amber. The lamps used to display such warning to the rear shall be mounted at the same level and as widely spaced laterally as practicable, and shall show simultaneously flashing amber or red lights, or any shade of color between amber and red. These warning lights shall be visible from a distance of not less than five hundred feet in normal sunlight.
[ 1977 ex.s. c 355 § 19.]
NOTES:
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.220 - Multiple-beam road-lighting equipment.

RCW 46.37.220
Multiple-beam road-lighting equipment.
Except as hereinafter provided, the head lamps or the auxiliary driving lamp or the auxiliary passing lamp or combination thereof on motor vehicles shall be so arranged that the driver may select at will between distributions of light projected to different elevations, and such lamps may be so arranged that such selection can be made automatically subject to the following limitations:
(1) There shall be an uppermost distribution of light, or composite beam, so aimed and of such intensity as to reveal persons and vehicles at a distance of four hundred fifty feet ahead for all conditions of loading;
(2) There shall be a lowermost distribution of light, or composite beam, so aimed and of sufficient intensity to reveal persons and vehicles at a distance of one hundred fifty feet ahead; and on a straight level road under any conditions of loading none of the high intensity portion of the beam shall be directed to strike the eyes of an approaching driver;
(3) Every new motor vehicle registered in this state after January 1, 1948, which has multiple-beam road-lighting equipment shall be equipped with a beam indicator, which shall be lighted whenever the uppermost distribution of light from the head lamps is in use, and shall not otherwise be lighted. Said indicator shall be so designed and located that when lighted it will be readily visible without glare to the driver of the vehicle so equipped.
[ 1977 ex.s. c 355 § 20; 1961 c 12 § 46.37.220. Prior: 1955 c 269 § 22; prior: 1947 c 267 § 5, part; Rem. Supp. 1947 § 6360-25a, part; RCW 46.40.140, part; 1933 c 156 § 3, part; 1929 c 178 § 5, part; 1927 c 309 § 22, part; RRS § 6362-22, part.]
NOTES:
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.230 - Use of multiple-beam road-lighting equipment.

RCW 46.37.230
Use of multiple-beam road-lighting equipment.
(1) Whenever a motor vehicle is being operated on a roadway or shoulder adjacent thereto during the times specified in RCW 46.37.020, the driver shall use a distribution of light, or composite beam, directed high enough and of sufficient intensity to reveal persons and vehicles at a safe distance in advance of the vehicle, subject to the following requirements and limitations:
(2) Whenever a driver of a vehicle approaches an oncoming vehicle within five hundred feet, such driver shall use a distribution of light, or composite beam, so aimed that the glaring rays are not projected into the eyes of the oncoming driver. The lowermost distribution of light, or composite beam, specified in RCW 46.37.220(2) shall be deemed to avoid glare at all times, regardless of road contour and loading.
(3) Whenever the driver of a vehicle approaches another vehicle from the rear within three hundred feet such driver shall use a distribution of light permissible under this chapter other than the uppermost distribution of light specified in RCW 46.37.220(1).
[ 1963 c 154 § 17; 1961 c 12 § 46.37.230. Prior: 1955 c 269 § 23; prior: 1947 c 267 § 5, part; Rem. Supp. 1947 § 6360-25a, part; RCW 46.40.140, part; 1933 c 156 § 3, part; 1929 c 178 § 5, part; 1927 c 309 § 22, part; RRS § 6362-22, part.]
NOTES:
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.240 - Single-beam road-lighting equipment.

RCW 46.37.240
Single-beam road-lighting equipment.
Head lamp systems which provide only a single distribution of light shall be permitted on all farm tractors regardless of date of manufacture, and on all other motor vehicles manufactured and sold prior to one year after March 18, 1955, in lieu of multiple-beam road-lighting equipment herein specified if the single distribution of light complies with the following requirements and limitations:
(1) The head lamps shall be so aimed that when the vehicle is not loaded none of the high intensity portion of the light shall at a distance of twenty-five feet ahead project higher than a level of five inches below the level of the center of the lamp from which it comes, and in no case higher than forty-two inches above the level on which the vehicle stands at a distance of seventy-five feet ahead;
(2) The intensity shall be sufficient to reveal persons and vehicles at a distance of at least two hundred feet.
[ 1977 ex.s. c 355 § 21; 1963 c 154 § 18; 1961 c 12 § 46.37.240. Prior: 1955 c 269 § 24; prior: 1947 c 267 § 5, part; Rem. Supp. 1947 § 6360-25a, part; RCW 46.40.140, part; 1933 c 156 § 3, part; 1929 c 178 § 5, part; 1927 c 309 § 22, part; RRS § 6362-22, part.]
NOTES:
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.260 - Alternate road lighting equipment.

RCW 46.37.260
Alternate road lighting equipment.
Any motor vehicle may be operated under the conditions specified in RCW 46.37.020 when equipped with two lighted lamps upon the front thereof capable of revealing persons and objects one hundred feet ahead in lieu of lamps required in RCW 46.37.220 or 46.37.240: PROVIDED, HOWEVER, That at no time shall it be operated at a speed in excess of twenty miles per hour.
[ 1977 ex.s. c 355 § 22; 1961 c 12 § 46.37.260. Prior: 1955 c 269 § 26; prior: 1937 c 189 § 27; RRS § 6360-27; RCW 46.40.150.]
NOTES:
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.270 - Number of lamps required—Number of additional lamps permitted.

RCW 46.37.270
Number of lamps required—Number of additional lamps permitted.
(1) At all times specified in RCW 46.37.020, at least two lighted lamps shall be displayed, one on each side at the front of every motor vehicle, except when such vehicle is parked subject to the regulations governing lights on parked vehicles.
(2) Whenever a motor vehicle equipped with head lamps as herein required is also equipped with any auxiliary lamps or a spot lamp or any other lamp on the front thereof projecting a beam of intensity greater than three hundred candlepower, not more than a total of two of any such additional lamps on the front of a vehicle shall be lighted at any one time when upon a highway.
[ 1977 ex.s. c 355 § 23; 1961 c 12 § 46.37.270. Prior: 1955 c 269 § 27; prior: 1937 c 189 § 28; RRS § 6360-28; RCW 46.40.160; 1929 c 178 § 2; 1927 c 309 § 19; 1921 c 96 § 22, part; 1919 c 59 § 10, part; 1917 c 155 § 15, part; 1915 c 142 § 21, part; RRS § 6362-19.]
NOTES:
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.280 - Special restrictions on lamps.

RCW 46.37.280
Special restrictions on lamps.
(1) During the times specified in RCW 46.37.020, any lighted lamp or illuminating device upon a motor vehicle, other than head lamps, spot lamps, auxiliary lamps, flashing turn signals, emergency vehicle warning lamps, warning lamps authorized by the state patrol and school bus warning lamps, which projects a beam of light of an intensity greater than three hundred candlepower shall be so directed that no part of the high intensity portion of the beam will strike the level of the roadway on which the vehicle stands at a distance of more than seventy-five feet from the vehicle.
(2) Except as required in RCW 46.37.190 no person shall drive or move any vehicle or equipment upon any highway with any lamp or device thereon displaying a red light visible from directly in front of the center thereof.
(3) Flashing lights are prohibited except as required in RCW 46.37.190, 46.37.200, 46.37.210, 46.37.215, and 46.37.300, warning lamps authorized by the state patrol, and light-emitting diode flashing taillights on bicycles.
[ 1998 c 165 § 16; 1987 c 330 § 713; 1977 ex.s. c 355 § 24; 1963 c 154 § 19; 1961 c 12 § 46.37.280. Prior: 1955 c 269 § 28; prior: 1949 c 157 § 2; 1947 c 267 § 6; 1947 c 200 § 2; 1937 c 189 § 29; Rem. Supp. 1949 § 6360-29; RCW 46.40.170; 1927 c 309 § 33; RRS § 6362-33.]
NOTES:
Short title—1998 c 165: See note following RCW 43.59.010.
Construction—Application of rules—Severability—1987 c 330: See notes following RCW 28B.12.050.
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.290 - Special lighting equipment on school buses and private carrier buses.

RCW 46.37.290
Special lighting equipment on school buses and private carrier buses.
The chief of the Washington state patrol is authorized to adopt standards and specifications applicable to lighting equipment on and special warning devices to be carried by school buses and private carrier buses consistent with the provisions of this chapter, but supplemental thereto. Such standards and specifications shall correlate with and, so far as possible, conform to the specifications then current as approved by the society of automotive engineers.
[ 1987 c 330 § 714; 1977 c 45 § 1; 1970 ex.s. c 100 § 6; 1961 c 12 § 46.37.290. Prior: 1955 c 269 § 29; prior: 1937 c 189 § 25, part; RRS § 6360-25, part; RCW 46.40.130, part; 1929 c 178 § 3, part; 1927 c 309 § 20, part; RRS § 6362-20, part.]
NOTES:
Construction—Application of rules—Severability—1987 c 330: See notes following RCW 28B.12.050.
School buses—Crossing arms: RCW 46.37.620.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.300 - Standards for lights on snow-removal or highway maintenance and service equipment.

RCW 46.37.300
Standards for lights on snow-removal or highway maintenance and service equipment.
(1) The state patrol shall adopt standards and specifications applicable to head lamps, clearance lamps, identification and other lamps on snow-removal and other highway maintenance and service equipment when operated on the highways of this state in lieu of the lamps otherwise required on motor vehicles by this chapter. Such standards and specifications may permit the use of flashing lights for purposes of identification on snow-removal and other highway maintenance and service equipment when in service upon the highways. The standards and specifications for lamps referred to in this section shall correlate with and, so far as possible, conform with those approved by the American association of state highway officials.
(2) It shall be unlawful to operate any snow-removal and other highway maintenance and service equipment on any highway unless the lamps thereon comply with and are lighted when and as required by the standards and specifications adopted as provided in this section.
[ 1987 c 330 § 715; 1963 c 154 § 20; 1961 c 12 § 46.37.300. Prior: 1955 c 269 § 30.]
NOTES:
Construction—Application of rules—Severability—1987 c 330: See notes following RCW 28B.12.050.
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.310 - Selling or using lamps or equipment.

RCW 46.37.310
Selling or using lamps or equipment.
(1) No person may have for sale, sell, or offer for sale for use upon or as a part of the equipment of a motor vehicle, trailer, or semitrailer, or use upon any such vehicle any head lamp, auxiliary or fog lamp, rear lamp, signal lamp, or reflector, which reflector is required under this chapter, or parts of any of the foregoing which tend to change the original design or performance, unless of a type which has been submitted to the state patrol and conforming to rules adopted by it.
(2) No person may have for sale, sell, or offer for sale for use upon or as a part of the equipment of a motor vehicle, trailer, or semitrailer any lamp or device mentioned in this section conforming to rules adopted by the state patrol unless such lamp or device bears thereon the trademark or name under which it is approved so as to be legible when installed.
(3) No person may use upon any motor vehicle, trailer, or semitrailer any lamps mentioned in this section unless the lamps are mounted, adjusted, and aimed in accordance with instructions of the state patrol.
[ 1987 c 330 § 716; 1986 c 113 § 1; 1961 c 12 § 46.37.310. Prior: 1955 c 269 § 31; prior: 1937 c 189 § 30; RRS § 6360-30; RCW 46.40.180; 1929 c 178 § 12; 1927 c 309 § 35; RRS § 6362-35.]
NOTES:
Construction—Application of rules—Severability—1987 c 330: See notes following RCW 28B.12.050.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.330 - Revocation of certificate of approval on devices—Reapproval, conditions.

RCW 46.37.330
Revocation of certificate of approval on devices—Reapproval, conditions.
(1) When the state patrol has reason to believe that an approved device does not comply with the requirements of this chapter or regulations issued by the state patrol, it may, after giving thirty days' previous notice to the person holding the certificate of approval for such device in this state, conduct a hearing upon the question of compliance of said approved device. After said hearing the state patrol shall determine whether said approved device meets the requirements of this chapter and regulations issued by the state patrol. If said device does not meet the requirements of this chapter or the state patrol's regulations it shall give notice to the one to whom the certificate of approval has been issued of the state patrol's intention to suspend or revoke the certificate of approval for such device in this state.
(2) If at the expiration of ninety days after such notice the person holding the certificate of approval for such device has failed to satisfy the state patrol that said approved device as thereafter to be sold or offered for sale meets the requirements of this chapter or the state patrol's regulations, the state patrol shall suspend or revoke the approval issued therefor and shall require the withdrawal of all such devices from the market and may require that all said devices sold since the notification be replaced with devices that do comply.
(3) When a certificate of approval has been suspended or revoked pursuant to this chapter or regulations by the state patrol, the device shall not be again approved unless and until it has been submitted for reapproval and it has been demonstrated, in the same manner as in an application for an original approval, that the device fully meets the requirements of this chapter or regulations issued by the state patrol. The state patrol may require that all previously approved items are being effectively recalled and removed from the market as a condition of reapproval.
[ 1987 c 330 § 718; 1977 ex.s. c 355 § 26; 1961 c 12 § 46.37.330. Prior: 1955 c 269 § 33; prior: 1937 c 189 § 32; RRS § 6360-32; RCW 46.40.200; 1933 c 156 § 4, part; 1929 c 178 § 6, part; 1927 c 309 § 23, part; RRS § 6362-23, part.]
NOTES:
Construction—Application of rules—Severability—1987 c 330: See notes following RCW 28B.12.050.
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.351 - Performance ability of brakes.

RCW 46.37.351
Performance ability of brakes.
Every motor vehicle and combination of vehicles, at all times and under all conditions of loading, upon application of the service brakes, shall be capable of:
(1) Developing a braking force that is not less than the percentage of its gross weight tabulated herein for its classification,
(2) Decelerating to a stop from not more than twenty miles per hour at not less than the feet per second per second tabulated herein for its classification, and
(3) Stopping from a speed of twenty miles per hour in not more than the distance tabulated herein for its classification, such distance to be measured from the point at which movement of the service brake pedal or control begins.
Tests for deceleration and stopping distance shall be made on a substantially level (not to exceed plus or minus one percent grade), dry, smooth, hard surface that is free from loose material.
Brake
system
application
Braking
and
force
braking
as a
Deceler-
distance
percent-
ation in
in feet
age of gross
feet per
from an
vehicle or
second
initial
Classification
combination
per
speed of
of vehicles
weight
second
20 m.p.h.
A
Passenger vehicles with
a seating capacity of
10 people or less
including driver, not
having a manufacturer's
gross vehicle weight
rating . . . .
52.8%
17
25
B-1
All motorcycles and
motor-driven cycles . . . .
43.5%
14
30
B-2
Single unit vehicles
with a manufacturer's
gross vehicle weight
rating of 10,000
pounds or less . . . .
43.5%
14
30
C-1
Single unit vehicles
with a manufacturer's
gross weight rating of
more than 10,000
pounds . . . .
43.5%
14
40
C-2
Combinations of a
two-axle towing vehicle
and a trailer with a
gross trailer weight of
3,000 pounds or less . . . .
43.5%
14
40
C-3
Buses, regardless of the
number of axles, not
having a manufacturer's
gross weight rating . . . .
43.5%
14
40
C-4
All combinations of
vehicles in driveaway-
towaway operations . . . .
43.5%
14
40
D
All other vehicles and
combinations of
vehicles . . . .
43.5%
14
50
[ 1963 c 154 § 22.]
NOTES:
Effective date—1963 c 154: See note following RCW 46.37.010.
2023 Revised Code of Washington › Title 46 - Motor Vehicles › Chapter 46.37 - Vehicle Lighting and Other Equipment. › 46.37.360 - Maintenance of brakes—Brake system failure indicator.

RCW 46.37.360
Maintenance of brakes—Brake system failure indicator.
(1) All brakes shall be maintained in good working order and shall be so adjusted as to operate as equally as practicable with respect to the front and back wheels and to wheels on opposite sides of the vehicle.
(2) All passenger cars manufactured on or after January 1, 1968, and other types of vehicles manufactured on or after September 1, 1975, shall be equipped with brake system failure indicator lamps which shall be maintained in good working order. The brake system shall demonstrate good working order and integrity by the application of a force of one hundred twenty-five pounds to the brake pedal for ten seconds without the occurrence of any of the following:
(i) Illumination of the brake system failure indicator lamp;
(ii) A decrease of more than eighty percent of service brake pedal height as measured from its free position to the floorboard or any other object which restricts service brake pedal travel;
(iii) Failure of any hydraulic line or other part.
(3) Brake hoses shall not be mounted so as to contact the vehicle body or chassis. In addition, brake hoses shall not be cracked, chafed, flattened, abraded, or visibly leaking. Protection devices such as "rub rings" shall not be considered part of the hose or tubing.
(4) Disc and drum condition. If the drum is embossed with a maximum safe diameter dimension or the rotor is embossed with a minimum safety thickness dimension, the drum or disc shall be within the appropriate specifications. These dimensions will be found on motor vehicles manufactured since January 1, 1971, and may be found on vehicles manufactured for several years prior to that time. If the drums and discs are not embossed, the drums and discs shall be within the manufacturer's specifications.
(5) Friction materials. On each brake the thickness of the lining or pad shall not be less than one thirty-second of an inch over the rivet heads, or the brake shoe on bonded linings or pads. Brake linings and pads shall not have cracks or breaks that extend to rivet holes except minor cracks that do not impair attachment. Drum brake linings shall be securely attached to brake shoes. Disc brake pads shall be securely attached to shoe plates.
(6) Backing plates and caliper assemblies shall not be deformed or cracked. System parts shall not be broken, misaligned, missing, binding, or show evidence of severe wear. Automatic adjusters and other parts shall be assembled and installed correctly.
[ 1977 ex.s. c 355 § 28; 1961 c 12 § 46.37.360. Prior: 1955 c 269 § 36; prior: 1951 c 56 § 2, part; 1937 c 189 § 34, part; RRS § 6360-34, part; RCW 46.36.020, 46.36.030, part; 1929 c 180 § 6; 1927 c 309 § 16; 1923 c 181 § 5; 1921 c 96 § 23; 1915 c 142 § 22; RRS § 6362-16.]
NOTES:
Severability—1977 ex.s. c 355: See note following RCW 46.37.010.