What vehicles may you overtake when this traffic sign is displayed?

This traffic sign indicates a no-overtaking zone — you are not allowed to overtake any vehicles while this sign is displayed. Specifically, it prohibits overtaking for all vehicles, regardless of whether they are single-track (like bicycles and motorcycles) or multi-track (like cars and trucks). The red circle with the symbols inside illustrates that overtaking of both types of vehicles is forbidden here. This rule is meant to increase safety, usually in places with limited visibility or narrow roads. So, if you see this sign, do not attempt to pass any vehicle until the restriction ends.