The following materials are approved as packing materials for use with any shipment of plant pests in accordance with § 330.210:
Absorbent cotton or processed cotton padding free of cottonseed.
Cellulose materials.
Excelsior.
Felt.
Ground peat (peat moss).
Paper or paper products.
Phenolic resin foam.
Sawdust.
Sponge rubber.
Thread waste; twine; or cord.
Vermiculite.
Advance approval for the use of any other packing material for any specific movement should be obtained from the Deputy Administrator.