sentences:  Other amendments require these numbers to be added to the relevant certificates and documents in the International Safety Management Code (ISM) and the International Ship and Port Facility Security Code (ISPS).Like the IMO ship identification number, the company identification number is a seven-digit number with the prefix IMO.For example, for the ship "Atlantic Star" (IMO 8024026), IMO 5304986 referred to the former ship manager Pullmantur Cruises Ship Management Ltd and IMO 5364264 to her former owner, Pullmantur Cruises Empress Ltd.
  
  IHS Maritime is the manager of the scheme and, as such, identifies and assigns IMO numbers without charge.