MSC-FAL.1/Circ.1 provides information on the WCO's "SAFE
Framework of Standards", which in its "Customs to Customs" pillar
encourages the usage by Customs Authorities of advance electronic
information as part of a risk-based cargo security strategy. Requirements
on the use of high security mechanical seals, as part of a seal integrity
programme for containers, form an important element of this pillar.
One of these requirements is that if public or private officials remove
a seal to inspect the container, they will install an acceptable replacement
seal and note the particulars of the action, including the new seal
number, in the cargo documentation.