Plant material may be shipped, transported, or moved by methods as described by methods given in the container requirements in 7 CFR 340.8. Plant materials shipped, transported, or moved may include seeds, tubers, tissue cultures, plantlets, and leaves. For most plant material, any shipping container that consists of an inner container that is a sturdy bag, box, or other such structure, surrounded by an outer container that is also a sturdy bag, box, or other such structure would be acceptable under most circumstances. Both inner container and outer container would be independently capable of preventing seed or material loss. Tobacco seed could be treated similarly, but the inner container should be a sealed bag, bottle, jar, or other appropriate container for the small seeds.

Material sent to contained facilities, such as a storage room, laboratory, growth chamber, screen house, greenhouse, should be handled in such a way that there is no release into the environment. In part, such handling will require ensuring that regulated material is not accidentally mixed with non-regulated material, does not transfer genes to non-regulated material inside or outside the facility, and does not accidentally escape from the contained facility.

To prevent accidental mixing of regulated and non-regulated material, a uniform identification scheme, such as by obvious marks, color-coding, or strict segregation of material, should be implemented.

To minimize pollen-mediated gene flow out of the contained facility for flowering plants that are allowed to flower, you should use either physical barriers or methods such as flower bagging or detasseling or corn, or screen houses or greenhouses or bench cages for insect-pollinated plants (e.g., cotton, male-fertile potato, tobacco, and out-crossing of tomato varieties). Similar methods should be used to prevent pollen flow to receptive plants within the contained facility.

Seeds and other material capable of propagation should be devitalized before disposal. Suitable means of devitalization at contained facilities include, but are not limited to dry heat, steam heat, or chemicals. Also suitable for some materials is exposure to the elements and composting at a location, such as one adjacent to the contained facility, that may be monitored until such devitalization takes place. Drains into sewer systems should be screened to prevent escape of seeds (e.g., those of tomato) that could survive there. Seeds and other material capable of propagation that re to be further utilized can be moved or planted in compliance with the regulations.