joe17 all you need is the NPIP certification and the approved shipping boxes. The PO most likely wont ask unless you bring it up. They tell you not to put anything in the box but I always pack a handful of shredded lettuce just in case our wonderful PO system takes more than a day to get them where they are going
Make sure you take them later in the day so they have less time sitting at the PO.

Make sure you take them later in the day so they have less time sitting at the PO.