Practice question

What is the difference between a Type B(U) package and a Type B(M) package under ADR?

  1. Type B(U) is for underground transport; Type B(M) is for maritime transport only
  2. Type B(U) carries liquids; Type B(M) carries gases only
  3. Type B(U) is disposable; Type B(M) is reusable
  4. Type B(U) requires Unilateral approval (origin country only); Type B(M) requires Multilateral approval from all countries along the transport route due to operational controls

Answer: D — Type B(U) requires Unilateral approval (origin country only); Type B(M) requires Multilateral approval from all countries along the transport route due to operational controls

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