The signs in the «Complementary panels» group belong to the VII. Vertical traffic signs block of the Spanish DGT theory. It is an information sign: rectangular or square, usually with a blue background.

On this page you have the complete catalogue of these signs with their image, official code and meaning, exactly as they may appear in the driving-licence theory exam.

💡 In the exam you will be shown the image of the sign and must recognise its meaning: look at the shape and colour to work out which group it belongs to.

S-800 Distance to the beginning of the danger or prescription S-800

Distance to the beginning of the danger or prescription

Indicates the distance from the place where the sign is located to the place where the danger begins or the prescription of the sign begins to apply. In the case that it is placed under the sign warning of danger due to narrowing of the road, it may indicate the clear width of the said narrowing.

Article 163

S-810 Length of dangerous or prescribed section S-810

Length of dangerous or prescribed section

Indicates the length where the danger exists or where the prescription applies.

Article 163

S-820y and S-821 S-820y

and S-821

Prohibition extension, to one side. Placed under a prohibition sign, it indicates the distance over which this prohibition applies in the direction of the arrow.

Article 163

S-830 Extension of the prohibition, on both sides S-830

Extension of the prohibition, on both sides

Placed under a prohibition sign, it indicates the distances in which this prohibition applies in each direction indicated by the arrows.

Article 163

S-840 Mandatory stop pre-signaling S-840

Mandatory stop pre-signaling

Placed under the yield sign, it indicates the distance to the mandatory stop sign at the next intersection.

Article 163

S-850a to S-853 S-850a

to S-853

Priority route. Additional panel of the R-3 sign, indicating the priority route.

Article 163

S-860 Generic S-860

Generic

Panel for any other clarification or delimitation of the signal or traffic light under which it is placed.

Article 163

S-870a Signage application S-870a

Signage application

Indicates, below the corresponding vertical sign, that it applies only to the exit ramp whose direction approximately matches that of the arrow.

Article 163

S-870b Signage application S-870b

Signage application

Indicates, below the corresponding vertical sign, that it applies only to the exit ramp whose direction approximately matches that of the arrow.

Article 163

S-880a Signage application for trucks S-880a

Signage application for trucks

Indicates, below the corresponding vertical sign, that it applies exclusively to trucks.

Article 163

S-880b Signage application for vehicles with trailers, except those with a single axle S-880b

Signage application for vehicles with trailers, except those with a single axle

Indicates, below the corresponding vertical sign, that it applies exclusively to vehicles with trailers, except those with a single axle.

Article 163

S-880c Signage application for buses S-880c

Signage application for buses

Indicates, below the corresponding vertical sign, that it applies exclusively to buses.

Article 163

S-880d Signage application for bicycles S-880d

Signage application for bicycles

Indicates, below the corresponding vertical sign, that it applies exclusively to bicycles.

Article 163

S-880e Signage application for personal mobility vehicles S-880e

Signage application for personal mobility vehicles

Indicates, below the corresponding vertical sign, that it applies exclusively to personal mobility vehicles.

Article 163

S-880f Signage application for bicycles and personal mobility vehicles S-880f

Signage application for bicycles and personal mobility vehicles

Indicates, below the corresponding vertical sign, that it applies exclusively to bicycles and personal mobility vehicles.

Article 163

S-890a Signage application under snowy conditions S-890a

Signage application under snowy conditions

Indicates, below the corresponding vertical sign, that it applies only when snowy conditions are present.

Article 163

S-890b Signage application under rainy conditions S-890b

Signage application under rainy conditions

Indicates, below the corresponding vertical sign, that it applies only when rainy conditions are present.

Article 163

S-890c Signage application under foggy conditions S-890c

Signage application under foggy conditions

Indicates, below the corresponding vertical sign, that it applies only when foggy conditions are present.

Article 163

S-891 Lateral distance when overtaking a cyclist S-891

Lateral distance when overtaking a cyclist

Indicates, below the corresponding vertical sign, the minimum lateral distance that a vehicle must maintain from the cyclist or group of cyclists being overtaken. If it is a group of cyclists, the distance refers to the cyclist riding furthest to the left.

Article 163

S-892 Monitoring by automatic means S-892

Monitoring by automatic means

Indicates that compliance with the vertical sign it accompanies is monitored using automatic detection and enforcement systems.

Article 163

📜 Reference legal text — Article 163 🔗 Read the official text on the BOE (Spanish General Traffic Regulations)

📚 Other sign groups

❓ Frequently asked questions

What are «Complementary panels» signs?
They are the signs from the «Vertical traffic signs» block of the Spanish DGT theory. It is an information sign: rectangular or square, usually with a blue background. This group brings together 20 signs with their official meaning.
How many signs does this group include?
This group gathers 20 road signs, each with its image, code and meaning on this same page.
Do these signs appear in the DGT theory exam?
Yes. Recognising signs is a central part of the theory exam. To practise with real questions, go to the TraficoTest platform.

🚦 Practise with DGT tests

Already recognise these signs? Test yourself with official exam-style questions.

📝 Start with TraficoTest