This question was asked in our recent customer survey

NIBSC endeavours to ensure plenty of dry ice is included with shipments. We also include a simple freeze/thaw indicator with instructions to show if the shipment has thawed in transit. If a shipment is delayed our shippers are instructed to re-ice as necessary. However, where a customer has asked for the shipment to be handed over to their local agent at the port of entry, then it is the local agent’s responsibility to re-ice.

Packages are clearly marked with the international label for dry ice or store at 2-8°C when shipped over ice packs.