CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS (Parts 400–471) > PART 408—CANNED AND PRESERVED SEAFOOD PROCESSING POINT SOURCE CATEGORY > SUBPART AF—Non-Alaskan Herring Fillet Processing Subcategory (§408.320 to §408.327) > 408.320—Applicability; description of the non-Alaskan herring fillet processing subcategory.