Section 40, The Customs Regu- Citation

Where goods are found to be discharged in excess orshort of the report the master or his agent may make application to the proper officer for permission to amend the report. Such application shall be in the Form C 8 and shall set out the reasons for the discrepancies: Provided that if after having reported cargo to be landed it is desired to clear an aircraft or ship without landing a part of such cargo the application to amend the report shaH, in respect of such part, state only that it is desired to retain the same on board for re-exportation.