7 C.F.R. § 301.87-3
(a) Except as otherwise provided in paragraph (b) of this section, the Deputy Administrator will list as a regulated area each State or portion of a State in which a sugarcane disease has been found by an inspector, or in which the Deputy Administrator has reason to believe a sugarcane disease is present, or that the Deputy Administrator deems necessary to regulate based on its proximity to a sugarcane disease or its inseparability for enforcement purposes from localities where a sugarcane disease occurs. The Deputy Administrator will publish a list of all regulated areas (the regulated areas list) on the PPQ website at www.aphis.usda.gov/aphis/ourfocus/planthealth/plant-pest-and-disease-programs/pests-and-diseases/plant-disease/sugarcane. The list will include the date that the list was last updated. Lists of all quarantined areas may also be obtained by request from any local PPQ office; local offices are listed in telephone directors and on the internet at www.aphis.usda.gov/aphis/ourfocus/planthealth/ppq-program-overview/sphd. After a change is made to the list of regulated areas, APHIS will publish a notice in the Federal Register informing the public that the change has occurred and describing the change to regulated areas. Less than an entire State will be designated as a regulated area only if the Administrator determines that:
[87 FR 80015, Dec. 29, 2022]