Tampered seals to be notified to customs officer
7.  The owner of a container or the agent appointed by him to take charge of or to manage the container shall forthwith notify the proper officer of customs if any seal placed on the container is found by the owner or agent to be tampered with, opened, broken, altered or removed on import and such container shall not be removed from the Customs Station at Woodlands or Tuas, or from the Woodlands Train Checkpoint or from a container terminal, as the case may be, without the prior permission of a senior officer of customs.