The 808.4 Text Supplementary Plate is a vital traffic sign used in Iceland to provide specific context for the primary sign it accompanies. It's essential to always read this plate in conjunction with the main sign to fully understand the rule being applied, whether it relates to distance, time, vehicle type, or other specific conditions. Ignoring this plate can lead to misinterpretations and incorrect actions on the road, so always consider both elements as a single, complete instruction.
This supplementary plate modifies the main road sign by providing specific conditions, such as distance or vehicle type. Understanding its precise meaning is crucial for correct decision-making and passing your theory test.
Text Supplementary Plate is used beneath another sign to narrow or explain the exact effect of the main rule. It can define distance, time, vehicle class, written conditions, or another limit that changes how the main sign should be interpreted on the road. In theory questions and real traffic alike, the mistake is often to remember the main sign but forget the plate that changes its scope. The correct reading always comes from combining both elements into one complete instruction.
This supplementary plate explains more precisely how the main sign applies by adding detail about a written condition attached to a main sign. It must always be read together with the main sign above it.
Get clear, practical answers to the most common questions about the 808.4 - Text Supplementary Plate 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 Icelandic driving theory exam in Iceland.
The 808.4 Text Supplementary Plate serves to clarify or narrow down the meaning of the main traffic sign positioned above it. It provides essential details like distance, time of day, specific vehicle types, or other conditions that modify how the main sign's instruction should be followed.
If you only see the main sign without its supplementary plate, you might misunderstand the rule. The plate is crucial for understanding the exact scope of the instruction. For example, a 'No Parking' sign might have a plate indicating 'Mon-Fri 8 AM - 6 PM', meaning parking is allowed outside these times.
You must read both the main sign and the 808.4 Text Supplementary Plate as one complete instruction. For instance, if a speed limit sign is above a plate saying '100m', the speed limit applies only for the next 100 meters.
Yes, a very common mistake is to remember the main sign's instruction but overlook the supplementary plate's condition. This can lead to answering questions incorrectly about when or where a rule applies, or to which vehicles it applies. Always ensure you've read and understood both parts.
No, the 808.4 Text Supplementary Plate is never used alone. It only has meaning when placed directly beneath another traffic sign, and its sole purpose is to add specific information to that main sign's directive.
A clear reference image of the 808.4 - Text Supplementary Plate road sign used in Iceland.

The 808.4 - Text Supplementary Plate road sign may also be known by these alternative names or terms.
The 808.4 - Text Supplementary Plate road sign is part of the Supplementary Plates category, which groups together signs with similar rules and functions.
Mastering Icelandic traffic rules means understanding how similar signs can have different implications. Comparing these related signs aids sign recognition and helps prevent common mistakes during your theory test revision.

The 802.2 Distance Plate clarifies when and where the main sign's rule applies.

Understand the Length of Validity Plate (804.1) to correctly interpret traffic signs.

Understand the Length of Effect Plate (804.2) and its impact on main road signs.

The Time Period Plate (806.1) Always Works With Another Sign Above It

The Time Period Plate (806.2) Modifies Main Signs to Show When They Apply

This supplementary plate clarifies that the main sign applies specifically to passenger cars under 3.5 tonnes.

Understand the 'Truck' Vehicle Class Plate and How it Modifies Main Signs

This Supplementary Plate Clarifies Delivery Rules for the Sign Above.
After reviewing the full list of Icelandic road signs, reinforce your learning with targeted practice. Explore our sign group categories or take a specific quiz to test your recognition and recall. Ensure you're fully prepared to identify and interpret all traffic signs for your upcoming driving theory exam.
View All Icelandic Road Signs