1 Every container which has been approved under article III shall be subject to control
in the territory of the Contracting Parties by officers duly authorized
by such Contracting Parties. This control shall be limited to verifying
that the container carries a valid Safety Approval Plate as required
by the present Convention, unless there is significant evidence for
believing that the condition of the container is such as to create
an obvious risk to safety. In that case the officer carrying out the
control shall only exercise it in so far as it may be necessary to
ensure that the container is restored to a safe condition before it
continues in service.
2 Where the container appears to have become unsafe
as a result of a defect which may have existed when the container
was approved, the Administration responsible for that approval shall
be informed by the Contracting Party which detected the defect.