When can you use your front fog lights?

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Correct!

When can you use your front fog lights?

When you're dazzled by the lights of oncoming vehicles

At any time, so that you're noticed

Instead of main-beam headlights

When visibility is 100 metres (328 feet) or less

Correct answer

DVSA theory test explanation

Only use front fog lights when adverse weather conditions mean you can't see more than 100 metres (328 feet). Remember: to avoid dazzling other drivers, turn off your fog lights when the visibility improves.

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