The C27 'No Overtaking' sign is a crucial prohibition sign that tells you that you must not overtake most motor vehicles on the road section where it is displayed. This restriction typically applies to cars, trucks, and buses, but usually allows overtaking of two-wheeled mopeds and motorcycles without sidecars. You'll often see this sign on stretches of road where overtaking would be dangerous due to narrowness, sharp bends, steep hills, or limited visibility, ensuring you maintain a safe distance and wait for a designated overtaking area.
Learn the key details of the C27 - No Overtaking road sign, including its function, what it communicates to drivers, and how it applies in real traffic situations in Sweden. Use this overview to understand the sign clearly and recognise it confidently during the Swedish driving theory exam.
This sign prohibits overtaking other motor vehicles on the road section it applies to. The prohibition typically allows overtaking only of two-wheeled mopeds and two-wheeled motorcycles without a sidecar. It is used where overtaking would be dangerous, such as on narrow roads, bends, hills, or areas with poor visibility. The restriction starts at the sign and continues as regulated until an end sign or another instruction changes the rule. Drivers must remain behind slower vehicles and wait for a permitted overtaking zone.
You must not overtake most motor vehicles, except specified two-wheeled mopeds and motorcycles without sidecar.
Get clear, practical answers to the most common questions about the C27 - No Overtaking 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 Swedish driving theory exam in Sweden.
The C27 'No Overtaking' sign prohibits you from overtaking most motor vehicles, such as cars, trucks, and buses. You must stay behind these vehicles if they are travelling slower than you. The primary exception is usually two-wheeled mopeds and two-wheeled motorcycles without a sidecar, which you may be allowed to overtake if safe to do so.
The prohibition indicated by the C27 sign starts where the sign is placed and continues until it is officially ended. This typically happens when you reach an 'End of Prohibition' sign (often a black and white diagonal strikethrough version of the prohibition sign) or when another traffic sign or rule modifies the restriction, such as the start of a designated overtaking zone.
Yes, the C27 sign's prohibition is specific. While you cannot overtake cars, trucks, or buses, you are generally permitted to overtake certain slower vehicles like two-wheeled mopeds and motorcycles without sidecars, provided it is safe and does not involve crossing into oncoming traffic where visibility is poor. Always assess the situation carefully.
A common exam trap is assuming the C27 sign only applies if you can visually see oncoming traffic. However, the sign creates a legal prohibition regardless of immediate traffic conditions. Learners might also forget the specific exceptions, like being allowed to overtake certain motorcycles, or they might misinterpret when the restriction ends. Always understand the sign's precise meaning and its duration.
Absolutely. Road markings, such as solid white lines in your lane or continuous white lines separating traffic in opposite directions, also prohibit overtaking. The C27 sign adds a clear legal restriction, often reinforcing or extending the rules indicated by road markings, especially in areas where visibility is a concern.
A clear reference image of the C27 - No Overtaking road sign used in Sweden.

The C27 - No Overtaking road sign may also be known by these alternative names or terms.
The C27 - No Overtaking road sign is part of the Prohibitory Signs (C) category, which groups together signs with similar rules and functions.