The OB-05 road sign is an informational sign used in the Netherlands to indicate that the rule or restriction on the accompanying main sign applies exclusively to agricultural vehicles, such as tractors. This often signifies that certain routes or crossings are unsuitable for heavier or slower farm machinery, or conversely, that these vehicles have a specific designated route. It's crucial to recognise this sign to understand which vehicles the main sign’s directive pertains to and adjust your own behaviour accordingly, especially during your theory test preparation.
Understanding the OB-05 supplementary plate is crucial for agricultural vehicle drivers in the Netherlands, as it indicates when a main traffic sign's rule applies specifically to them, helping avoid fines and ensure safe traffic flow. Correct sign interpretation of this plate is vital for your Dutch driving theory test and for all road users to anticipate specific vehicle movements, ensuring compliance with local traffic rules.
The agricultural vehicle plate is placed directly under a main traffic sign to show that the rule is aimed at tractors, harvesters, and similar farm machinery. It is often found near villages, narrow rural roads, and environmentally sensitive areas where heavy, slow traffic must be guided or kept out. The plate does not extend the rule to lorries or passenger cars unless separately indicated.
This additional plate indicates that the rule on the main sign applies specifically to agricultural vehicles such as tractors and self-propelled farm machines. Drivers of these vehicles must comply with the instruction or restriction shown above, for example a turn ban or access limitation. Other road users should expect slow, wide vehicles to follow the signed route and adapt their own driving accordingly.
Get clear, practical answers to the most common questions about the OB-05 - Only Applies to Agricultural Vehicles road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the Dutch driving theory exam in the Netherlands.
This sign clarifies that the rule of the main sign it accompanies is only for agricultural vehicles like tractors. Other vehicles are exempt from that specific rule, unless otherwise indicated.
You might see this sign near specific routes where slow-moving, wide, or heavy agricultural vehicles need special consideration, or on roads where they are permitted to travel but other vehicles might face a restriction.
The OB-05 sign means the main sign's rule *only* applies to agricultural vehicles. A sign saying 'Uitgezonderd landbouwverkeer' (Exempt agricultural traffic) means the main sign's rule applies to everyone *except* agricultural vehicles. The OB-05 is a restriction *for* them, while 'Uitgezonderd' is an exemption *from* a restriction.
Yes, often. While the sign itself restricts the main sign's rule *to* agricultural vehicles, their presence implies you should be prepared for potentially slow or wide farm machinery on the road, especially if the main sign indicates a specific route or behaviour for them.
Generally, no. The sign is specifically for tractors and similar agricultural machines. Mobile machines or lorries are not considered agricultural vehicles unless explicitly stated otherwise, so they would not be included under this specific restriction.
A clear reference image of the OB-05 - Only Applies to Agricultural Vehicles road sign used in the Netherlands.

The OB-05 - Only Applies to Agricultural Vehicles road sign may also be known by these alternative names or terms.
The OB-05 - Only Applies to Agricultural Vehicles road sign is part of the Supplementary Plates (OB) category, which groups together signs with similar rules and functions.
Comparing signs like the 'Only Applies to Agricultural Vehicles' plate with other supplementary plates helps you grasp subtle differences, crucial for accurate recall during your theory test revision. Practicing this traffic sign comparison sharpens your ability to distinguish similar road signs, leading to fewer errors and increased confidence in your driving knowledge.

This sign means the rule applies ONLY to horse riders.

The OB-02 sign means the rule applies exclusively to cyclists.

This sign means the rule ahead exclusively applies to moped riders.

This Sign Exclusively Targets Cyclists and Moped Riders

OB-06: This Sign Strictly Applies Only to Motorcyclists

This sign OB-07 means the following rule applies only to motorcycles and passenger cars.

OB-08: This Sign Only Applies to Motor Vehicles with More Than Two Wheels

The OB-09 sign means a rule specifically targets passenger cars, not all vehicles.
Improve your recognition of official Dutch traffic signs by exploring related theory modules and complex priority scenario studies. These linked resources bridge the gap between visual identification and applying traffic rules correctly for your CBR exam.
When you witness or are involved in a traffic accident in the Netherlands, knowing your legal obligations under the Wegenverkeerswet is paramount. This guide explains precisely what you must do, from immediately securing the scene and activating hazard lights to making an effective emergency call via 112. Understanding these procedures is vital for demonstrating responsible driving behaviour and is a key area assessed in the CBR theory exam.
Navigate Turns and Overtakes Safely When Towing a Trailer.
When a Siren Sounds: Know Your Duty and Stay Safe for Your Dutch Driving Exam.
Learn about the legal penalties and enforcement mechanisms in the Netherlands for driving without a valid driver's license. This article explains the potential fines issued by the Public Prosecution Service (OM) and other serious repercussions, such as license confiscation or invalidation. It is essential knowledge for all drivers to ensure compliance with Dutch traffic laws.
C9 is a circular white sign with a red border that closes the road to several vulnerable or very slow categories of traffic. It is often placed at tunnels, busy distributor roads, or express corridors where these users would face high risk or seriously disrupt traffic flow. Only regular motor vehicles such as cars, vans, buses, and lorries may normally continue past this sign unless an additional plate provides an explicit exception.
The lorry plate is positioned directly under a main traffic sign to target goods vehicles above the passenger car category. It is frequently used near city centres, residential districts, schools, and weak bridges where heavy vehicles cause risk or disturbance. The plate guides freight traffic towards ring roads or designated truck routes and does not automatically apply to buses or small vans unless indicated.
After reviewing the full list of Dutch road signs, deepen your understanding by exploring signs organized by category or practicing with targeted questions. This systematic approach ensures you fully grasp every sign's meaning and application, preparing you thoroughly for your CBR driving theory exam.
View All Dutch Road Signs