Seven-Point Container Inspection
Procedures must be in place to verify the physical integrity of the container structure prior to stuffing, to include the reliability of the locking mechanisms of the doors. A seven-point inspection process is recommended for all containers:

 

 
  • Front wall
  • Left side
  • Right side
  • Floor
  • Ceiling/Roof
  • Inside/outside doors
  • Outside/Undercarriage

 

 

 

 

 

 

Source: http://www.cbp.gov/xp/cgov/trade/cargo_security/ctpat/security_criteria/criteria_importers/ctpat_importer_criteria.xml