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Some sites have found that the use of automated online vision equipment (e.g. bar code scanners or cameras) provides a bene?cial check of the accuracy of the packing operation. This equipment is able to check that the correct packaging has been consistently used throughout the packing run and that the correct date code has been applied. Any out-of-speci?cation information (such as when the wrong packaging is used) is identi?ed by this equipment, and sta? are either alerted or the product is rejected out of the product ?ow. Where a company chooses to use this type of equipment, it is important that procedures are in place to ensure that it is correctly set up and operates e?ectively throughout the packing run. At a minimum this will include checks: ? at the beginning of the packing run, so that the equipment is con?rmed to be set up correctly before packing commences ? at the end of the packing run, to con?rm that the equipment is still operating e?ectively when packing is completed ? during the packing run, at a frequency based on risk (i.e. based on the site’s ability to take appropriate action in the event of an adverse test result, before the implicated materials are released from the site). Good practice is to test the online vision system prior to commencing the packing run (e.g. by using alternating packs of both correct and incorrect packaging). Depending on the function of the vision system, incorrect packaging might include the wrong packaging, an incorrect date code or an obscured label. It is important that these test packs are clearly marked so that they cannot inadvertently enter the process ?ow. The site must consider the procedures it would follow in the event of an equipment failure (e.g. a back-up plan).