7 C.F.R. § 301.55-3
(a) Except as otherwise provided in paragraph (b) of this section, the Administrator will list as a quarantined area each State, or each portion of a State, in which the South American cactus moth has been found by an inspector, in which the Administrator has reason to believe that the South American cactus moth is present, or that the Administrator considers necessary to quarantine because of its inseparability for quarantine enforcement purposes from localities where South American cactus moth has been found. The Administrator will publish a list of all quarantined areas (the quarantine list) on the Plant Protection and Quarantine (PPQ) website at www.aphis.usda.gov/aphis/ourfocus/planthealth/plant-pest-and-disease-programs/pests-and-diseases/sa_insects/south-american-cactus-moth. 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 directories 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 quarantined areas, APHIS will publish a notice in the Federal Register informing the public that the change has occurred and describing the change to the quarantined areas. Less than an entire State will be designated as a quarantined area only if the Administrator determines that:
[87 FR 80007, Dec. 29, 2022]