(a) The Administrator will designate an area as a quarantined area for citrus greening or as a quarantined area for Asian citrus psyllid in accordance with the criteria listed in paragraph (c) of this section. The Administrator will publish a description of all areas quarantined for citrus greening or Asian citrus psyllid on the Plant Protection and Quarantine (PPQ) Web site: (http://www.aphis.usda.gov/plant__health/plant__pest__info/citrus__greening/index.shtml). The description of each quarantined area will include the date the description was last updated and a description of any changes that have been made to the quarantined area. Lists of all quarantined areas may also be obtained by request from any local office of PPQ; local offices are listed in telephone directories and on the Internet at (http://www.aphis.usda.gov/services/report__pest__disease/report__pest__disease.shtml). After a change is made to the description of quarantined areas, we will publish a notice in the Federal Register informing the public that the change has occurred and describing the change to the quarantined areas.

(b) Designation of an area less than an entire State as a quarantined area. Less than an entire State will be designated as a quarantined area for citrus greening or the Asian citrus psyllid only if the Administrator determines that:

(1) The State has adopted and is enforcing restrictions on the intrastate movement of regulated articles that are equivalent to those imposed by this subpart on the interstate movement of regulated articles; and

(2) The designation of less than the entire State as a quarantined area will prevent the interstate spread of citrus greening or Asian citrus psyllid.

(c) Criteria for designation of a State, or a portion of a State, as a quarantined area for citrus greening or Asian citrus psyllid.

(1) A State, or portion of a State, will be designated as a quarantined area for citrus greening when the presence of citrus greening is confirmed within the area by an APHIS-administered test.

(2) A State, or portion of a State, will be designated as a quarantined area for Asian citrus psyllid in which an established population of Asian citrus psyllids has been detected.

(3) A State, or portion of a State, will be designated as a quarantined area for either citrus greening or Asian citrus psyllid if the Administrator considers it necessary to quarantine the area because of its inseparability for quarantine enforcement purposes from localities in which citrus greening or an established population of Asian citrus psyllids has been found.