(a) Quarantined areas. Those areas described on the department's website (http://www.TexasAgriculture.gov) as quarantined areas under this subchapter, are declared to be quarantined areas.(b) New or revised quarantined areas. On the basis of new or revised information, the department may declare, augment, diminish, combine, eliminate, rename or otherwise modify quarantined areas.(c) Designation or modification of a quarantined area is effective upon the posting of the notification of the quarantined area or core area on the department's website (http://www.TexasAgriculture.gov).