Visibility is considerably reduced. When are you allowed to switch on fog headlamps?

You are allowed to switch on fog headlamps only when visibility is significantly reduced due to weather conditions such as rain, falling snow, or fog. This is because fog lamps are designed to improve your visibility and make your vehicle more visible to others under these specific conditions. Using fog lamps in clear weather can dazzle other drivers and is not permitted according to German traffic rules. So, turning on fog lamps during rain, snow, or fog is correct, as these conditions can greatly reduce visibility on the road. This helps ensure safer driving for you and others.