Guide
Pet Food cGMP: the 21 CFR 507 + AAFCO Operating Manual
Pet food and animal food sit in a regulatory niche that confuses operators who came from human food: the FDA cGMP regulation is 21 CFR 507 (not Part 117), AAFCO's Model Regulations carry most of the labelling and nutritional substance, and state feed control officials enforce on the ground. Recalls — Diamond 2012, Hill's 2019 vitamin D, Midwestern Pet Foods 2021 aflatoxin, Mid America 2024 Salmonella — keep the category under continuous FDA Center for Veterinary Medicine (CVM) scrutiny. This guide is the operating manual for a US pet-food and animal-food plant under 21 CFR 507 and AAFCO.
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The regulatory frame — 21 CFR 507, AAFCO, state feed officials
Animal food in the US is regulated under the FSMA Preventive Controls for Animal Food rule (21 CFR 507) as the cGMP and hazard-analysis backbone, plus the FD&C Act's adulteration and misbranding provisions. AAFCO (Association of American Feed Control Officials) is not a federal agency — it's a voluntary association of state feed regulators whose Model Regulations and Official Publication are adopted by reference in nearly every state's feed law. The pragmatic stack: 21 CFR 507 is federal cGMP/HACCP, AAFCO is the labelling/nutritional substance, and state feed control officials inspect.
Hazard analysis and preventive controls under 21 CFR 507
Subpart C of 21 CFR 507 requires a written food-safety plan signed by a PCQI (Preventive Controls Qualified Individual, animal-food version). The hazard analysis covers biological (Salmonella, Listeria, mycotoxin), chemical (vitamin/mineral over- and under-fortification, BSE-prohibited material, melamine-style adulteration), and physical (metal, bone fragments, plastic). Process preventive controls land on the extruder kill step or oven bake, sanitation preventive controls land on the post-kill EMP, supply-chain controls land on incoming ingredients (especially animal-sourced), and food-allergen controls land where shared lines run species-specific or therapeutic diets.
AAFCO and the nutritional adequacy claim
AAFCO's Model Regulations define nutrient profiles for dogs and cats (growth, adult maintenance, all life stages, reproduction), how to substantiate a nutritional adequacy statement (formulation vs feeding trial), what the guaranteed analysis must declare, ingredient naming, and species/calorie statements. A 'complete and balanced' claim requires either formulating to the AAFCO nutrient profile or passing an AAFCO feeding-trial protocol (6 months, 8 dogs/cats, defined endpoints). Therapeutic and veterinary-exclusive diets follow AAFCO Model Bill provisions on veterinary supervision.
Recall lessons — what the inspectors actually look for
Diamond 2012 (Salmonella, multi-state human outbreak from pet-food handling) drove zone-based EMP into the category. Hill's 2019 vitamin D over-fortification killed cats and led to permanent changes in vitamin-premix verification (incoming COA + in-house assay, not COA alone). Midwestern Pet Foods 2021 aflatoxin recall pushed mycotoxin programmes onto incoming corn and finished product. Mid America Pet Food 2024 Salmonella recall reset expectations on Zone 1/2/3 sampling density in kibble plants. Every one of these is now a 21 CFR 507 inspection focus.
State registration, label review and the brand-owner trap
Each state separately registers pet-food products before sale — typically through the state Department of Agriculture's feed control programme. AAFCO's PFLR (Pet Food Label Modernization) is replacing legacy label rules in adopting states. Brand owners who use a co-manufacturer remain legally responsible for label compliance, supplier qualification and recall execution under 21 CFR 507 — the FSVP/co-man chain doesn't shift liability. Maintaining a single source of truth for SKU × state registration × label version is operationally the hardest part of the category.
A 90-day pet-food cGMP readiness path
Days 1–15: 21 CFR 507 gap assessment — written food-safety plan, PCQI sign-off, hazard analysis. Days 16–30: AAFCO nutrient-profile and label review across the SKU portfolio. Days 31–50: supplier qualification programme refresh — animal-sourced ingredients, BSE controls, vitamin-premix verification. Days 51–70: Salmonella EMP densification per Mid America 2024 lessons. Days 71–85: state registration matrix rebuild and AAFCO PFLR transition plan. Days 86–90: mock FDA CVM 21 CFR 507 inspection and management review.
Standards covered in this guide
Each standard, retailer code or assurance scheme referenced above has its own deep-dive page with scope, audit detail and common pitfalls.
Where this lives in V5 Ultimate
The clauses above aren't theoretical — every one maps to a shipped module and an industry profile. Jump to the parts of the product that turn this guide into evidence on a Monday morning.
Modules that do the work
Industries this hits hardest
Frequently asked
Why is pet food under 21 CFR 507 instead of 21 CFR 117?
FSMA wrote two parallel preventive-controls rules: Part 117 for human food, Part 507 for animal food. The structures are similar but Part 507 has animal-food-specific hazards (species nutrient requirements, prohibited materials under 21 CFR 589, medicated feed) and a separate PCQI curriculum. A plant making both human and pet products lives under both rules.
Is AAFCO certification a thing?
No — AAFCO does not certify or approve products. The phrase 'AAFCO approved' is technically inaccurate; the correct phrasing is 'formulated to meet the AAFCO [profile]' or 'animal feeding tests using AAFCO procedures'. State feed officials register products against AAFCO Model Regulations; AAFCO itself is a body of regulators, not a certifier.
Do raw pet food and freeze-dried products fall under 21 CFR 507?
Yes — they're animal food, so Part 507 applies. The added overlay is FDA's Compliance Policy Guide 690.800 on Salmonella in animal food, which sets a zero-tolerance Salmonella standard for raw pet food specifically. Most raw producers use HPP or run a validated kill step plus exhaustive finished-product testing. See the raw pet food guide for the discipline-specific operating manual.
Who inspects my pet-food plant — FDA or the state?
Both. FDA CVM and FDA ORA conduct 21 CFR 507 inspections under FSMA. State feed control officials conduct registration, labelling and (in many states) GMP inspections under state feed law. The two regimes overlap but are separate — a well-run plant prepares for both simultaneously.
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