Phytophthora Ramorum; Quarantine and Regulations

We are amending the Phytophthora ramorum regulations to establish restrictions on the interstate movement of nursery stock from nurseries in nonquarantined areas in California, Oregon, and Washington. We are also amending the regulations to update conditions for the movement of regulated articles of nursery stock from quarantined areas, to add restrictions on the movement of decorative trees without roots from quarantined areas, as well as to restrict the interstate movement of all other nursery stock from nurseries in quarantined areas. We are also updating the list of plants regulated because of P. ramorum and the list of areas that are quarantined for P. ramorum, and making other miscellaneous amendments to the regulations. These actions are necessary to prevent the spread of P. ramorum to noninfested areas of the United States.