I. "Main" and "Other" data elements. Main Data elements have to be submitted by the carrier to customs 24 hours before cargo loading. Other Data Elements must be submitted before the vessel arrives at its destination.

II. "Mandatory" and "Conditional" data elements.  "Mandatory" main and other data elements have to be submitted to China customs for all shipments, while "Conditional" main and other data elements are required only when the shipments fall under defined criteria, (e.g., the Transshipment place has to be declared only if transshipment occurs).

Please refer to following link for details of the data elements.

http://www.oocl.com/eng/resourcecenter/customeradvisories/china24hradvancemanifestrule/2008.htm 

We will continue to update customers on any further developments on this issue.