What is NOT a requirement for nursery stock under quarantine?

The requirement that is not necessary for nursery stock under quarantine is to move the shipment to a more suitable location. When nursery stock is quarantined, the primary focus is on ensuring that it does not spread pests or diseases, which includes holding it in a designated area for inspection. Movement to a different location could potentially increase the risk of spreading any contaminants, which is contrary to keeping the stock secure.

In contrast, notifying the commissioner of the arrival of such shipments is essential for tracking and monitoring purposes. Holding the shipment for inspection is a critical step to assess the health of the plants and identify any potential issues. Additionally, marking the shipment legibly helps in proper identification and communication regarding the quarantine status. Thus, while the other actions contribute to the control and safety of quarantined materials, moving the shipment is not a mandated requirement.