This rule requires nurseries to obtain a permit from the department in order to propagate Casuarina cunninghamiana trees. It requires the trees to be vegetatively propagated from registered source trees that have been certified as male trees by the department. It also requires citrus growers in the three counties to obtain a permit from the department in order to plant Casuarina cunninghamiana windbreaks. It establishes requirements for maintenance of the windbreak plantings, and destruction of the windbreaks if they are no longer properly maintained, the grove is no longer operating, or hybridization is found to occur. It also establishes fees for the permits.