CFR›Title 40›Chapter I›Part 422›Subpart B ContainsSection 422.20CorpusDaily eCFRDisplayed edition2026-05-14Last updated2026-05-14 Subpart B—Phosphorus Consuming Subcategory Sections 422.20 § 422.20 Applicability; description of the phosphorus consuming subcategory. Previous A Subpart A—Phosphorus Production Subcategory Next C Subpart C—Phosphate Subcategory