For the interpretation of this law and its regulations, the following shall have the character of definitions:
1. Traffic accident (accidente de tránsito): negligent act committed by vehicle drivers, their passengers, or pedestrians, while traveling in the places referred to in Article 1 of this law. A traffic accident must involve at least one vehicle and result in the death or injury of persons and/or property damage as a result of the violation of this law.
2. Sidewalk (acera): road intended for pedestrian traffic.
3. Alcohol testing (alcoholimetría): biochemical analysis to determine the presence of alcohol in the blood or exhaled air and its quantity.
4. Blood alcohol level (alcoholemia): the result of alcohol testing.
5. Advertisement (anuncio): writing, print, painting, emblem, drawing, or other informative medium, located on private property, whose purpose is commercial advertising or to draw attention to a product, article, trademark, commercial activity, business, service, recreational activity, profession, or home-based occupation, offered, sold, or provided at a site other than the one where such advertisement appears.
6. Informative sign (anuncio informativo): informative medium located within the right-of-way, whose purpose is to inform the road user about services, activities, and tourist destinations or other nature provided at a site other than the one where such sign appears.
7. Bus (autobús): motor vehicle intended for the mass transportation of persons with a capacity for more than forty-four seated passengers, regardless of the standing passengers it can transport. Also, considered as such shall be motor vehicles, articulated or not, with a purpose, design, and dimensions similar to that described above, which even with a seated passenger capacity lower than that indicated have been specially designed for the comfortable and safe transportation of high densities of standing passengers, such that by their adjustment to the prevailing public transport and energy policies on regular routes they are qualified as such by regulation issued by the Executive Branch.
8. Automobile (automóvil): motor vehicle intended for the transportation of persons, with a maximum capacity of up to eight passengers, according to its design.
9. Expressway (autopista): restricted-access road with four or more traffic lanes, whether or not it has a central dividing island.
10. Notice (aviso): element of general interest, without commercial advertising purposes.
11. Public transport stop bay (bahía de parada de transporte público): space duly authorized as such and complementary to the road structure, used as a transition zone between the roadway (calzada) and the platform, temporarily intended for the boarding and alighting of passengers, for public transport vehicles on regular routes.
12. Bicycle (bicicleta): vehicle with two or more wheels propelled by human or assisted traction and operated by pedals. In its electrically-assisted version, the maximum speed of the pedal-assist mechanism, on a flat surface, does not exceed 25 km/h and must also be pedaled to move forward.
(Thus amended the preceding subsection by Article 1 of Law No. 10651 of March 10, 2025, "Amendment to the Land-Based Public Roads Traffic and Road Safety Law, Cycling Mobility and Safety Law, for the expansion of the bicycle concept")
13. Moped (bicimoto): two-wheeled vehicle with a thermal engine of cylinder capacity not exceeding 50 cc or, in the case of vehicles with engines other than internal combustion engines, with a power of up to 5 kW, whose steering system is operated by handlebars.
14. Citation ticket (boleta de citación): form by which a person is notified, physically or electronically, of the infraction attributed to them and is summoned to appear before the competent authority.
15. Midibus (buseta): motor vehicle dedicated to the transportation of persons with a capacity of between twenty-six and forty-four seated passengers.
16. Decal (calcomanía): adhesive label of variable size used for distinctive and/or control purposes for vehicle circulation.
17. Roadway (calzada): surface of the road on which vehicles travel and which is composed of one or more traffic lanes. It does not include the shoulder (espaldón).
18. Local streets (calles locales): public roads included within the quadrant of an urban area that are not classified as urban traverses of the national road network.
19. Unclassified roads (caminos no clasificados): public roads such as bridle paths, footpaths, trails, and tracks that provide access to very few users, who will bear their maintenance and improvement costs. The categories of neighborhood roads (caminos vecinales) and local streets are not included.
20. Neighborhood roads (caminos vecinales): public roads that provide direct access to farms and other rural economic units, connect hamlets and villages to the national road network, and are characterized by having low traffic volumes and a high proportion of short-distance local trips.
21. Basic vehicle characteristics (características básicas del vehículo): make, style, model, category, serial or chassis number, vehicle identification number (VIN), model year, body type, capacity, net and gross weight, color, engine number, fuel type, cylinder capacity, power, and license plate number.
22. Restricted-access highway (carretera de acceso restringido): highway to which, by provision of the Ministry of Public Works and Transport (MOPT), vehicle and pedestrian access or exit is only permitted at certain intersections with other public roads. Roads in which it is determined that, for capacity or safety reasons, it is convenient to limit vehicle access or exit shall be classified as such.
23. Primary highways (carreteras primarias): network of trunk routes to serve road corridors and characterized by having relatively high traffic volumes and a high proportion of international, interprovincial, or long-distance trips.
24. Secondary highways (carreteras secundarias): non-primary routes that connect important canton capitals or other centers of population, production, or tourism that generate a considerable number of interregional or inter-cantonal trips.
25. Tertiary highways (carreteras terciarias): routes that collect traffic from primary and secondary highways and constitute the main roads for trips made within a region or between important districts.
26. Traffic lane (carril de circulación): part of the roadway intended for traffic in a single direction, the width of which shall be established by regulation.
27. Central left-turn lane (carril central de giro a la izquierda): the central left-turn lane is marked with a continuous outer line and discontinuous inner lines. It is used in the central strip of urban public roads with four or more lanes. It is a refuge area that allows drivers to perform left-turn maneuvers, from a secondary road or onto a secondary road, without interrupting the free flow of traffic.
28. Cylinder capacity (cilindrada): volumetric capacity of an engine's cylinder or cylinders expressed in cubic centimeters (cm3) or liters (lts), usually used as C.C. and L, respectively.
29. Vehicle technical inspection centers (centros de inspección técnica vehicular, CIVE): state or private entity intended for the technical-mechanical inspection of motor vehicles and the review of emissions control.
30. Cyclist (ciclista): person who drives a bicycle or its passenger.
31. Bike lane (ciclovía): road or section of the roadway intended exclusively for the traffic of bicycles, non-motorized tricycles, and pedestrians (the latter only when there are no sidewalks), the width of which shall be established by regulation.
(Thus amended the preceding subsection by subsection a) of Article 17 of the Cycling Mobility and Safety Law, No. 9660 of February 24, 2019) 32. Driver (conductor): person who has operational control of a vehicle and is directly responsible for it and for the infractions committed.
33. Novice driver (conductor novato): any person who acquires their driver's license (licencia de conducir) for the first time and who does not exceed three years since obtaining it. Professional drivers are excluded.
34. Professional driver (conductor profesional): any person whose main work activity is driving motor vehicles dedicated to the transport of goods or persons and who has been accredited with a type B-3, B-4, C, D, or E license. Also considered a professional driver is one who has been accredited with a type A-2, A-3, B-1, or B-2 license, and who has requested, at the time of its issuance, the P (professional) endorsement.
35. Environmental pollutants (contaminantes ambientales): gases, particles, or noise produced by a motor vehicle.
36. CTP: Public Transport Council (Consejo de Transporte Público).
37. Cosevi: Road Safety Council (Consejo de Seguridad Vial).
38. Wheel chock (cuña): piece of metal, wood, or any other suitable material used to chock vehicles and thus ensure their immobility.
39. Horizontal curve (curva horizontal): circular curve connecting the straight sections of a highway in the horizontal plane.
40. Vertical curve (curva vertical): parabolic curve connecting the straight lines representing the slope profile.
41. Sketch (croquis): descriptive document of the details of a traffic accident drawn up at the scene of the events by the competent traffic authority.
42. Decibel (decibelio or decibel): unit of measure used to determine the intensity of a sound.
43. Right-of-way (derecho de vía): right pertaining to a strip of land of public domain nature and intended for the construction of road works for vehicle circulation or pedestrian traffic, or other works related to safety, beautification, road nomenclature, informative signs for services, activities, and tourist destinations, as well as for the installation of public transport vehicle stops or bus shelters.
44. Circulation right (derecho de circulación): right obtained after paying the amounts established by law for vehicle circulation, during a specific period.
45. Electronic road address (dirección electrónica vial, DEV): electronic address provided to Cosevi by every driver or owner of a vehicle, or that which has been assigned to them, at which notifications of proceedings related to the application of this law will be sent.
(By resolution of the Constitutional Chamber No. 8481 of June 11, 2014, the word "obligatorily" in the preceding subsection was annulled)
46. Official traffic control device (dispositivo oficial de control de tránsito): signal or notice that those traveling on public roads must obey, in accordance with legal provisions.
47. Special equipment (equipo especial): self-propelled equipment intended for carrying out agricultural, civil engineering, and forestry or airport emergency tasks.
48. Shoulder (espaldón or hombro): area adjacent to both sides of the roadway whose purpose is to provide lateral support to the pavement, serve for pedestrian traffic, and provide space for traffic emergencies and occasional vehicle parking.
49. Parking lot, parking (estacionamiento, parqueo or aparcamiento): public or private place intended for the temporary parking of vehicles.
50. Parking meter (estacionómetro or parquímetro): device by which the fee allowing temporary vehicle parking on a public road intended for that purpose is recorded and collected.
51. To park (estacionar, aparcar or parquear): to place a vehicle in a specific place and keep it without moving forward or backward.
52. Lambda factor (λ) (factor lambda): proportion existing between the air/fuel ratio at which the engine is working and the theoretical air/fuel ratio at which it should work for combustion to be complete.
53. Greater Metropolitan Area (Gran Área Metropolitana, GAM): area defined as such by the corresponding executive decree.
54. Tow truck (grúa): motor vehicle specially adapted or designed for the transfer and towing of vehicles from one place to another, whether by dragging or lifting.
55. Infractor (infractor): person who violates the provisions of this law.
56. Vehicle immobilization (inmovilización de un vehículo): act that prevents the free movement of a vehicle by removing it or its license plates.
57. Vehicle technical inspection (inspección técnica vehicular, IVE): test by which the technical-mechanical conditions and emissions control of motor vehicles are verified.
58. Measuring instruments (instrumentos de medición): equipment specially designed to determine or verify the margin of acceptability and safety of the object to be measured.
59. Intersection (intersección): point on a public road where two or more roads converge and where vehicles can turn or maintain the direction of their trajectory.
60. Signboard (letrero): any substrate, material, and/or element on which there are inscriptions or figures exhibited for communication purposes and of common or general interest.
61. Driver's license (licencia de conducir): permit granted by the State through which a person is authorized to drive a vehicle for a specified period.
62. Line (línea): public transport service provided on a specific route.
63. Barrier line (línea de barrera): line dividing the roadway at its center, whether a continuous white line, a yellow line, or a double yellow line, which indicates that it is prohibited to drive, overtake, or make U-turns or maneuvers to the left of that line.
64. Yellow line (línea amarilla): horizontal marking painted with yellow color on the pavement, used to separate traffic flows in opposite directions, on left edge lines separated by medians, and on some channelizing islands. It can be a fragmented or continuous line. When marked on the curb edge, on local streets, it indicates the prohibition of parking on that section of the road. In case of ambiguity in the marking, what the fixed vertical signal indicates shall prevail, in accordance with what is indicated by the Central American Agreement on Uniform Road Signs.
65. White line (línea blanca): horizontal marking painted with white color on the pavement, used to separate traffic flows in the same direction, on edge lines on two-way highways, on right edge lines on highways separated by a median, and on some channelizing islands. It can be a fragmented or continuous line, all in accordance with what is indicated by the Central American Agreement on Uniform Road Signs.
66. Brake lights (luces de freno): those emitted by red light projecting devices when the brake pedal is pressed.
67. Directional lights (luces direccionales): those emitted by a red or orange light projecting device, located both at the front and rear of the vehicle, intermittently, indicating the direction to be taken.
68. Fog lights (luces para neblina): those intended to increase road illumination in case of fog, heavy rain, dust clouds, or other adverse environmental conditions.
69. High beam (luz alta): the light emitted forward by a vehicle's main headlamps to obtain long-range road illumination.
70. Low beam (luz baja): the light emitted forward by a vehicle's main headlamps to illuminate the road at a short distance, without causing glare or discomfort to other drivers or road users coming in the opposite direction.
71. Minibus (microbús): motor vehicle intended for the transportation of persons, whose seated passenger capacity ranges between nine and twenty-five persons.
72. Motorcycle (motocicleta): motor vehicle with two or more wheels, with a thermal engine of cylinder capacity greater than 50 cc or with a power exceeding 5 kW, whose steering system is operated by handlebars.
73. Fixed fine (multa fija): administrative penalty for violation of this law, expressed as payment of the sum established in each case.
74. Constructive nature (naturaleza constructiva): adaptation to international standards in the design, production, and marketing of vehicles by manufacturing companies. In no case may it contradict the technical and safety requirements of this law.
75. Traffic officer (oficial de tránsito): official appointed in accordance with the law, vested with authority by the Dirección General de la Policía de Tránsito.
76. Opacity (opacidad): state in which a material partially or totally prevents the passage of light rays, thereby causing a lack of visibility for the observer.
77. License plate (placa de matrícula): public document issued by the National Registry, which externally identifies a vehicle.
78. Windshield (parabrisas): front transparent glass of a motor vehicle.
79. Official report (parte oficial): document by which the competent authority reports on a traffic accident.
80. Passenger (pasajero): any person other than the driver who occupies a place within a vehicle.
81. Toll (peaje): amount charged to the user for traveling with a vehicle on a specific section of a public road.
82. Natural landscape (paisaje natural): environment unmodified or scarcely modified by humans and characterized by having different ecosystems and being devoid of constructions or buildings of any kind, which are not the result of the interaction between various geographical agents such as the lithosphere, atmosphere, biosphere, and hydrosphere.
83. Urban landscape (paisaje urbano): environment resulting from population growth and the formation of large cities, characterized by a configuration determined by its buildings, mainly commercial centers and service buildings, its housing development, vehicles in transit, notices, signboards, advertisements, public lighting, and other distinctive elements.
84. Interurban landscape (paisaje interurbano): environment that shows human development, both in construction, housing, and growing supply of services and commercial activities, but without presenting all the characteristics of an urban landscape.
85. Rural landscape (paisaje rural): non-urbanized or very low urbanization environment intended for agricultural, agro-industrial, extractive, forestry, or other agrarian activities.
86. Pedestrian (peatón): any person who travels on foot.
87. Total loss (pérdida total): structural damage or damage to the systems of a motor vehicle, which prevents its circulation for reasons of legal or road safety.
88. Temporary learner's permit (permiso temporal de aprendizaje): document issued, on a temporary basis, to learn to drive motor vehicles and which is subject to compliance with the provisions.
89. Gross weight (peso bruto): total vehicle weight resulting from adding its empty weight according to factory specifications, plus the weight of the useful load it can transport according to the same specifications.
90. Maximum authorized weight (peso máximo autorizado, PMA): maximum weight authorized for a specific vehicle, according to its design and in accordance with what the respective regulation establishes.
91. "Pick up": light duty cargo vehicle with a front engine and which at the rear has a metal or other material open box or bed, used especially for cargo transport.
92. Weight and dimension plate (plaqueta de pesos y dimensiones): plate that identifies light trailers and semi-trailers of less than 750 kilograms. It shall have the characteristics and information determined by regulation.
93. Mirror-type tint (polarizado tipo espejo): material or substance that, seen from the outside, causes the effect of reflecting the image and not allowing visibility into the interior of the vehicle.
94. Limousine-type tint (polarizado tipo limusina): material or substance that, seen from the outside, presents absolute opacity and does not allow visibility into the interior of the vehicle.
95. Reaccreditation (reacreditación): process by which a driver, whose license has lost validity due to the application of points, is granted a new license.
96. Cantonal road network (red vial cantonal): set of neighborhood roads, local streets, and unclassified roads that are not part of the national road network, according to provision of the MOPT. Its administration and maintenance corresponds to the municipalities.
97. National road network (red vial nacional): set of primary, secondary, and tertiary highways whose constitution, maintenance, and administration correspond to the MOPT.
98. Vehicle technical reinspection (reinspección técnica vehicular): test by which the technical-mechanical conditions and emissions control of motor vehicles that did not pass the IVE are verified.
99. Light trailer (remolque liviano): vehicle without its own traction, whose PMA does not exceed 750 kg.
100. Heavy trailer or semi-trailer (remolque or semirremolque pesado): vehicle without its own traction, whose PMA exceeds 750 kg.
101. Rolling (rodamiento): circulation or movement of vehicles on public roads.
102. Sign (rótulo): writing, print, painting, emblem, drawing, or other informative medium, located on private property, whose purpose is commercial advertising or to draw attention to a product, article, trademark, commercial activity, business, service, recreational activity, profession, or home-based occupation, offered, sold, or carried out at the same site where said element is located.
103. Route (ruta): journey traveled, between two points called terminals, by public passenger transport vehicles that have been authorized by the Public Transport Council, solely in the modalities of midibus and bus.
104. Active safety (seguridad activa): set of mechanisms or devices intended to prevent the vehicle from suffering an accident or to decrease the risk of one occurring.
105. Passive safety (seguridad pasiva): set of accessories, mechanisms, or devices that, in the event of an accident, is intended to protect the physical integrity of the vehicle's occupants or to minimize the possible injuries they could suffer.
106. Traffic light (semáforo): device that through several optical units alternatively assigns the right-of-way to each movement or group of movements converging at an intersection. It can be operated manually or automatically.
107. Semi-trailer (semirremolque): vehicle without its own traction built to be coupled to a truck tractor by means of an articulation as a coupling link, in such a way that a substantial part of its weight and its load partially rests on it. The load may or may not be integrated into the semi-trailer.
108. Horizontal signal (señal horizontal): yellow or white paint marking that is applied on the rolling surface to regulate vehicle movement.
109. Vertical signal (señal vertical): traffic device that is fixed to the ground and placed vertically to inform, regulate, or warn users.
110. Special service (servicio especial): that which is provided temporarily within the operation of remunerated motor transport of persons, with buses, midibuses, and minibuses, without having a fixed itinerary and which is contracted per trip, per time, or both, is not performed on an established line, and must have prior authorization from the Public Transport Council.
111. Stable taxi special service (servicio especial estable de taxi): public service of remunerated transport of persons aimed at a closed group of users and which satisfies a limited, residual, exclusive, and stable demand.
112. Child restraint system (sistema de retención infantil): implements or devices that fulfill the function of protecting the safety of minors, on any type of trip taken and regardless of the distance traveled.
113. Traffic system (sistema de tránsito): set of public or private highways, streets, pedestrian crossing zones, and other areas where vehicles and pedestrians move, in accordance with Article 1 of this law.
114. Tire wear indicator (testigo de llanta): elevation within the water channels of a tire by which its wear is visualized.
115. Taxi: motor vehicle intended for the remunerated transport of persons, whose regime is regulated by Law No. 7969, Ley Reguladora del Servicio Público de Transporte Remunerado de Personas en Vehículos en la Modalidad de Taxi, of December 22, 1999, and its amendments.
116. Taximeter (taxímetro): mechanical, electronic, or mixed instrument, used in taxis to determine the price of the service provided and indicate, in a visible and sealed location, the sum that the user must pay according to a pre-established base fare.
117. To transit (transitar): transfer, movement, or displacement of persons, vehicles, goods, cargo, or livestock on public roads.
118. Limited load transport or cargo taxi (transporte de carga limitada or taxi carga): public cargo transport service carried out by means of authorized cargo vehicles, to which a fare established by law is applicable.
119. Public tow truck transport or tow taxi (transporte público de grúa or taxi grúa): public tow truck transport service carried out by means of tow truck vehicles, to which a fare established by law is applicable.
120. Public passenger transport (transporte público de personas): public passenger transfer service carried out by means of buses, midibuses, minibuses, taxis, or other authorized vehicles, to which a fare or price established according to the legal system is applicable.
121. UTV: all-terrain utility vehicle of the "side by side" type with four or more wheels, known as mules, with braking, acceleration, and handlebar system.
122. Vehicle (vehículo): means of transportation used to transfer persons or goods on public roads.
123. Abandoned vehicle (vehículo abandonado): vehicle left on a public road for a period of more than twenty-four hours.
124. Articulated vehicle (vehículo articulado): vehicle composed of a tractor unit and one or two semi-trailers that are towed by the former, joined by an articulation that, besides linking them, allows the transmission of load.
125. Motor vehicle (vehículo automotor): land transport vehicle with its own propulsion on two or more wheels and that does not travel on rails. Special equipment is excepted from this definition.
126. Light cargo vehicle (vehículo de carga liviana): motor vehicle designed and used for cargo transport, whose maximum authorized weight is less than eight tons.
127. Heavy cargo vehicle (vehículo de carga pesada): motor vehicle designed and used for cargo transport, whose maximum authorized weight is at least eight tons.
128. Slow-moving vehicle (vehículo de tránsito lento): one that, in a given place and time, moves at a speed lower than the normal speed of the rest of the traffic flow. When the traffic flow is on ascending slopes, all vehicles circulating at crawl speed (velocidad de arrastre) shall be considered slow-moving.
129. Authorized emergency vehicles (vehículos de emergencia autorizados): fire-fighting, police vehicles, ambulances, and others that meet the corresponding regulatory conditions.
130. Crawl speed (velocidad de arrastre): constant speed at which motor vehicles advance on an ascending slope, once they have exhausted their acceleration capacity.
131. Rustic vehicle: a motor vehicle specially constructed to travel in rural zones, on unclassified or hard-to-access roads, for which it has front and rear traction, and a minimum gross weight of five hundred kilograms.
132. Roadway: street, road, or highway on which vehicles travel.
133. Exclusive roadway: a roadway intended only for the transit of vehicles dedicated to a specific activity.
134. Public roadway: any roadway on which there is free circulation.
135. To turn: to change the direction of the vehicle in its trajectory.
136. Visor strip: an upper strip placed on a vehicle's windshield that presents a greater darkening than the rest of it.
137. Crossing zone: a zone of a public roadway demarcated for pedestrian crossing.
138. Safety zone: a crossing zone regulated by traffic lights that, alternately, permits the passage of pedestrians and vehicles.
139. Loading and unloading zone: a space on a public roadway intended exclusively for the loading and unloading of goods from motor vehicles, trailers, and semi-trailers.
(Thus added the previous subsection by Article 2 of Law No. 9460 of June 20, 2017)
(Sinalevi Note: By means of Article 1 of Law No. 10834 of December 15, 2025, the following definitions of this numeral will be added. In accordance with Article 2 of the aforementioned law, it will come into effect twelve months after publication in the official gazette La Gaceta, that is, on December 20, 2026, therefore, as of that date the definitions will read as follows:
Mobility: the action of moving from one place to another.
Active mobility: the use of any non-motorized means of transportation to move from one place to another, additional to pedestrian mobility, such as scooters, bicycles, wheelchairs, skates, among others.
Road safety: the discipline that studies and applies the actions and mechanisms aimed at the proper functioning of circulation on public roadways, preventing traffic accidents.
") (Sinalevi Note: By means of Article 1 of the Law to improve the effectiveness of legislation on alcohol and drug control in driving, No. 10860 of February 27, 2026, two new definitions will be added to this numeral. In accordance with Transitory Provision III of the aforementioned law, it will come into effect twelve months after its publication, that is, on March 28, 2027, therefore, as of that date the new definitions will be as follows:
47. Illicit drugs: any illicit psychoactive substance, which introduced into the body, by any route of administration, acts upon and affects the nervous system, generating alterations in mental processes and in the functions that regulate thoughts, emotions, behaviors, consciousness, mood, reflexes, reaction capacity and time, information processing, perceptual-motor coordination, and attention, excluding those substances used under medical prescription.
( ... )
72. Psychoactive metabolite: any substance or molecule resulting from the metabolization process of psychoactive substances in the human body that retains its psychoactive effects as an intermediate or final product, and that has psychoactivity. For the purposes of this law, metabolites of psychoactive substances used under medical prescription are excluded.
( ... ).
")