An Animal Feeding Operation (AFO) that is defined as a Large CAFO under 35 Ill. Adm. Code 502.103 or as a medium CAFO under 35 Ill. Adm. Code 502.104, or that is designated as a CAFO under 35 Ill. Adm. Code 502.106.
Ill. Admin. Code tit. 35, § 501.238