US petfood allergen labeling

Per the project's parse of 21 CFR Part 501 — Animal Food Labeling (pdf-parsed/regulatory/part_501.json, fetched 2026-07-13; 14 sections: 501.1, 501.2, 501.3, 501.4, 501.5, 501.8, 501.15, 501.17, 501.18, 501.22, 501.100, 501.103, 501.105, 501.110): (1) 21 CFR Part 501 contains NO section 501.9 and NO FALCPA-style allergen declaration requirement for pet food — the terms "allergen", "FALCPA" and "sesame" do not appear anywhere in Part 501. FALCPA (Food Allergen Labeling and Consumer Protection Act) is a human-food statute; nothing in the parsed Part 501 extends it to animal food. (2) Part 501 sections that do govern ingredient disclosure for animal food: 501.4 (designation of ingredients), 501.22 (labeling of spices, flavorings, colorings), 501.110 (collective names for feed ingredients). (3) No project source text supports any state-level pet food allergen rules (New York sesame declaration, Illinois "natural flavors" disclosure) or allergen prevalence figures (10-15% of dogs/cats) — these claims are flagged unverifiable. [Audit 2026-07-19: REWRITTEN — previous text fabricated "FDA extends FALCPA principles to pet food under 21 CFR 501.9" (section does not exist) plus unsourced state rules and prevalence data.]