What is a "swap body" (according to the traffic regulations)?

1. AA box made of wood intended for transporting citrus fruit in bulk, which can be replaced with another box.
2. BA box or loading platforms intended for loading, unloading and exchanging loads.
3. CA container or box or other means of transporting goods that is designed for loading and unloading by a "mobile lift".
4. DAn installation used for transporting liquids that can be removed from the vehicle chassis and left with or without a load.

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