When the vehicle ahead signals that it is moving over to turn left or right, the vehicle behind must not overtake it.

Explanation

False. The provision requires you not to obstruct the signalling vehicle as it moves over. Overtaking itself is not banned, and you need not give way if that would force you to change speed or direction suddenly.

Guides that explain this

• Overtaking and Lane Rules in Japan: Where It Is Banned, and How
• Stopping Distance in Japan: Reaction Distance + Braking Distance

Related terms

• Signalling (aizu)
• Overtaking (oikoshi)

Related questions

• On a road with a separate footway or roadside…
• As a rule a vehicle must travel on the…
• When you cross into the right-hand side of the…
• When driving directly behind another vehicle you…
• When overtaking, you must as a rule pass on the…
• A vehicle about to overtake need not watch the…