Once arriving at our secure facility, the bins are offloaded, and placed in a shred queue.  The room is locked and secured before anyone unlocks a bin.  When each bin's turn arrives to be emptied, the bin number is recorded along with the date and time it was lifted up and emptied.  This creates a complete record of events from the time a bin leaves the customer premise to the time it's contents are destroyed.  The record of these events are verified before any certificate of destruction is issued and sent out with the accompanying invoice.