Interviewer instructions
    
                                    This is a 6-digit number assigned to the import document by the  Bureau of Customs (BOC).  It is either perforated, stamped or hand written.  If perforated, refer to Entry Number found at the upper most right portion of the import document.If the CCN is less than 6 digit, prefix the given CCN with zeroes (to complete the 6-digit numbers. Example: 236 should be 000236.