Federal Meat Inspection Act

The Federal Meat Inspection Act (21 U.S.C. §§ 601–695) requires continuous federal inspection of every animal slaughtered and every pound of meat processed at the approximately 6,800 federally inspected meat establishments in the United States. A USDA Food Safety and Inspection Service (FSIS) inspector must be physically present during all slaughter operations, and must inspect every carcass before and after slaughter to ensure it's free of disease, contamination, and adulteration. That USDA inspection mark on your steak, ground beef, or deli meat means a federal inspector verified that the product was produced under sanitary conditions, is properly labeled, and is safe to eat. The FMIA covers cattle, sheep, swine, goats, horses, mules, and other equines — the companion Poultry Products Inspection Act covers poultry, and the Egg Products Inspection Act covers eggs. Practically, FMIA inspection of equines at domestic facilities has been blocked since 2006 by annual congressional appropriations riders, meaning equines destined for slaughter are transported to Canadian or Mexican plants; the welfare standards governing that transport are established under APHIS Commercial Transportation of Equines for Slaughter (9 CFR Part 88).

Current Law (2026)

Legal Authority

• 21 U.S.C. § 602 — Congressional findings (unwholesome, adulterated, or misbranded meat products are injurious to public health and impair the effective regulation of commerce; federal inspection is necessary to protect consumers)
• 21 U.S.C. § 603 — Ante-mortem inspection (examination of all animals before slaughter; animals found diseased or unfit must be condemned and destroyed; humane slaughter methods required)
• 21 U.S.C. § 604 — Post-mortem inspection (examination of every carcass after slaughter; carcasses found unwholesome or adulterated must be condemned and destroyed; wholesome carcasses are marked with the USDA inspection mark)
• 21 U.S.C. § 606 — Inspection and labeling of meat food products (prepared meat products must be inspected and properly labeled before entering commerce)
• 21 U.S.C. § 608 — Sanitary inspection (slaughtering and processing establishments must operate under sanitary conditions; FSIS may refuse inspection — effectively shutting down — establishments that fail to maintain sanitary standards)
• 21 U.S.C. § 610 — Prohibited acts (unlawful to sell, transport, or distribute adulterated or misbranded meat; to slaughter without inspection; to operate an uninspected establishment; to assault or interfere with an inspector)
• 21 U.S.C. § 620 — Imports (imported meat must meet U.S. standards; foreign countries must have inspection systems equivalent to the U.S. system; FSIS reinspects imported meat at ports of entry)
• 21 U.S.C. § 661 — Federal-state cooperation (states may operate their own meat inspection programs for intrastate-only commerce, provided the state program is "at least equal to" the federal program)

How It Works

Continuous inspection is what distinguishes meat inspection from virtually every other food safety program. Unlike FDA-inspected food facilities — which receive periodic inspections — FSIS inspectors are physically stationed in every federally inspected slaughter plant during all hours of operation. An inspector examines every animal before slaughter (ante-mortem inspection) for signs of disease, injury, or conditions that would make the animal unfit for human food; after slaughter, every carcass is examined post-mortem for disease, contamination, and abnormalities. Carcasses that pass receive the round USDA inspection mark; those that fail are condemned and destroyed. Since 1996, HACCP (Hazard Analysis and Critical Control Points) has added a science-based prevention layer: every plant must identify potential hazards (microbial contamination, chemical residues, physical contaminants), establish critical control points where those hazards can be prevented or eliminated, and monitor those control points continuously, with FSIS verifying compliance through testing, observation, and records review. The Humane Methods of Slaughter Act (7 U.S.C. § 1901+) requires that livestock be rendered insensible to pain before slaughter, typically by captive bolt or electrical stunning; FSIS inspectors enforce these requirements, and violations trigger immediate suspension of inspection — which halts plant operations.

Foreign countries wishing to export meat to the United States must demonstrate that their inspection systems are equivalent to the U.S. system: FSIS conducts on-site audits and may delist countries that fail to meet U.S. standards, and imported meat is reinspected at U.S. ports of entry. States may also operate their own meat inspection programs for establishments selling only within state borders (intrastate commerce), provided the state program is "at least equal to" the federal program in personnel, facilities, and standards. Approximately 27 states operate such programs, primarily serving small and very small establishments; the 2008 Farm Bill allowed state-inspected meat to be sold across state lines if the state program meets federal equivalency standards, expanding market options for small local processors.

How It Affects You

If you're a consumer buying meat and poultry products: Every piece of commercial meat, poultry, and egg product you purchase in a grocery store, restaurant, or online must bear the USDA mark of inspection — the round USDA stamp on beef and pork products, and the USDA shield on poultry packages (FSIS mark). This means the facility where the animal was slaughtered and processed was under continuous FSIS oversight at the time of production, the product was tested for pathogenic bacteria (Salmonella, E. coli O157:H7, Listeria), and it met USDA standards for safe and wholesome products. If you see a recall notice from FSIS (published at fsis.usda.gov/recalls), stop using the product immediately — FSIS recalls are typically voluntary by the company but may become mandatory if the company refuses. For raw poultry: the USDA has set Salmonella performance standards that processors must meet, but raw poultry still commonly carries Salmonella — safe handling and cooking to 165°F is your critical safety step regardless of inspection status. FSIS's "Is It Done Yet?" and FoodSafety.gov provide temperature guidelines.

If you're a meat processor, slaughterhouse, or USDA-inspected facility: FSIS inspection is not periodic — it's continuous and in-plant. A FSIS inspector is present during all slaughter operations and post-mortem inspection of each carcass is required by the Federal Meat Inspection Act (21 U.S.C. § 601 et seq.) and Poultry Products Inspection Act (21 U.S.C. § 451 et seq.). Your HACCP plan (Hazard Analysis and Critical Control Points, 9 CFR Part 417) must be current, validated, and verified — FSIS inspectors review your HACCP records and can issue Noncompliance Reports (NRs) that can escalate to suspension of inspection (effectively shutting you down). Humane slaughter compliance under the Humane Methods of Slaughter Act (7 U.S.C. § 1901) is enforced by FSIS inspectors — FSIS can halt slaughter operations for inhumane handling. For new processing facilities: the FSIS grant of inspection process requires a facility application, plant drawings, HACCP plan, and pre-operational review — allow 3–6 months minimum for the process, and work with your FSIS district office early.

If you're a small processor or direct-to-consumer meat producer: Your path to legal sales depends on your scale and market. For any commercial sale — including at farmers' markets, through farm stores, or online — the meat must come from a USDA-inspected or state-inspected facility. The Cooperative Interstate Shipment (CIS) program (FMIA § 501) allows state-inspected plants that meet federal standards to ship products across state lines — 27 states currently participate, giving small processors in those states access to federal-equivalent inspection without operating under FSIS's continuous presence. If you sell within your state only, a state meat inspection program (with USDA oversight) may be less operationally burdensome than full federal inspection. Custom slaughter (21 U.S.C. § 623) is a key exemption: slaughtering an animal owned by the person who will consume the meat — without charge for the slaughter service — is exempt from the FMIA, allowing custom exempt processors to slaughter animals for farmers who retain personal ownership. Custom exempt product must be marked "Not for Sale" and cannot be sold commercially.

If you're an importer of meat or poultry: Foreign meat and poultry products can only enter the U.S. from FSIS-equivalent countries — countries whose inspection systems FSIS has determined meet standards equivalent to the U.S. system. Currently, about 35 countries have received equivalence determinations for at least some meat or poultry products, including Canada, Australia, New Zealand, and several EU member states. Even from equivalent countries, all products are subject to reinspection by FSIS at U.S. ports of entry — FSIS inspectors examine import shipments for labeling, condition, and compliance. Products from non-equivalent countries cannot enter the U.S. commercial meat supply. For importing organic or specialty products: labeling claims (including "natural," "no antibiotics," and "raised without added hormones") are regulated by FSIS, and labels must be approved before use — submit label applications through FSIS's PHIS Label Submission and Approval System (LSAS).

State Variations

The FMIA creates a federal-state cooperative framework:

• ~27 states operate their own meat inspection programs for intrastate commerce
• State programs must be "at least equal to" the federal program
• The Cooperative Interstate Shipment (CIS) program allows state-inspected meat to be sold across state lines in participating states
• States without their own programs rely entirely on FSIS inspection
• State laws may impose additional requirements (e.g., specific labeling including country-of-origin labeling, licensing for retail meat markets)

Implementing Regulations

• 9 CFR Part 311 — Disposal of Diseased or Otherwise Adulterated Carcasses and Parts: the FSIS regulations specifying, disease by disease, which post-mortem conditions require total condemnation of a carcass and which permit partial salvage after trimming. Part 311 implements 21 U.S.C. § 601 et seq. and translates the FMIA's general prohibition on adulterated meat into concrete pathological decision rules that FSIS veterinarians apply at slaughter. Key provisions:

  • § 311.1 — General condemnation standard: any carcass or part that is adulterated — diseased, contaminated, or otherwise unfit for food — must be condemned and disposed of by incineration, rendering into inedible grease, or burial; no condemned material may re-enter the human food chain; FSIS veterinarians (not plant employees) make condemnation decisions and apply the official "U.S. Condemned" mark
  • § 311.10 — Anthrax and blackleg: carcasses of animals with anthrax, blackleg (emphysematous gangrene), or malignant edema are condemned in their entirety and destroyed without being dressed; the plant must be disinfected; animals suspected of anthrax may not be bled or skinned before veterinary inspection — to prevent aerosolization of Bacillus anthracis spores; this is the most absolute condemnation category because anthrax is a human pathogen and public health threat
  • § 311.10 — Bluetongue: condemned if systemic lesions are present; mild localized lesions in sheep and cattle may permit partial salvage after trimming of affected parts
  • § 311.11 — Neoplasms (tumors): metastatic neoplasms — cancers that have spread beyond the organ of origin — require full condemnation of the entire carcass; localized neoplasms confined to a single organ may be salvaged after removal and destruction of the affected part, provided the remaining carcass is otherwise sound; this distinction (localized vs. metastatic) is the most frequently applied neoplasm rule because lymphosarcoma in cattle can present as localized organ involvement without readily detectable systemic spread, requiring the veterinarian to inspect multiple lymph nodes
  • § 311.14 — Abscesses and pyemia: a single abscess in an otherwise healthy carcass is handled by condemnation and removal of the affected part; pyemia (multiple abscesses indicating systemic blood-borne infection) requires condemnation of the entire carcass because systemic infection compromises the whole animal
  • § 311.15 — Brucellosis: carcasses of animals that reacted positive to the brucellosis test but show only localized lesions confined to specific tissues (udder, lymph nodes, joints) may be passed for food after removal and destruction of affected parts; if systemic infection is evident, the carcass is condemned; the distinction matters because brucellosis-reactor cows are still slaughtered commercially — the disease control program works by eliminating the breeding herd, not by total condemnation of slaughter animals
  • § 311.16 — Food poisoning contamination: carcasses contaminated with Salmonella, E. coli O157:H7, or other food-poisoning pathogens detected during ante-mortem or post-mortem inspection are condemned; this section is distinct from HACCP pathogen performance standards — it addresses visible contamination or positive sampling results at post-mortem, not statistical exceedances in production lots
  • § 311.13 — Pigmentary conditions: jaundice (icterus) — yellow discoloration of fat, connective tissue, and internal organs — requires condemnation if the discoloration is marked and persistent after a 24-hour detention; mild physiological jaundice that fades after chilling may be passed; melanosis (black pigmentation) and other pigmentary conditions are handled by condemnation of affected parts only

  Part 311's condemnation rules represent a century of veterinary pathology accumulated into binding regulations — the codified judgment of federal veterinarians about which disease conditions make meat unsafe or unwholesome. Before the FMIA, slaughter plants applied their own standards (or none), and diseased animals frequently reached consumers. The current system requires a licensed FSIS veterinarian on-site during slaughter who applies Part 311 criteria in real time: at ante-mortem (before entry to the kill floor) and post-mortem (inspection of the dressed carcass and viscera). Condemned carcasses are denatured with a carbolic acid or other approved denaturant before being removed from the official establishment, preventing any possibility of diversion to human food. No major rulemakings since 1971 (35 FR 15569, Oct. 3, 1970; 36 FR 11903, June 22, 1971 — original FMIA implementing regulations); disease-specific guidance has been updated through FSIS directives rather than Federal Register rulemaking.

• 9 CFR Part 314 — Handling and Disposal of Condemned or Other Inedible Products at Official Establishments (11 sections — the FSIS rules governing what happens to carcasses, parts, and materials condemned under Parts 309, 310, and 311 once FSIS marks them with the "U.S. Condemned" legend; Part 314 is the physical-control companion to Part 311's disease condemnation criteria — it specifies how condemned material must be physically contained, denatured, separated, and removed to prevent any possibility of diversion to human food; authority: 21 U.S.C. § 601; original regulations: 35 FR 15575 (October 1970)):

  • § 314.1 — Tanking at official establishments: condemned carcasses and parts at establishments with tanking (rendering) facilities must immediately go to the tank room; they must be rendered — cooked under steam pressure — before leaving the official establishment; FSIS inspectors supervise tanking operations and seal tanks when necessary to maintain control over condemned material; rendered inedible material leaves the establishment as grease, meat meal, or tankage — inputs for pet food, animal feed, fertilizer, or industrial uses, none of which can enter human food channels
  • § 314.2 — Physical separation of inedible from edible: all tanks, rendering equipment, and storage areas for inedible products must be in rooms or compartments entirely separate from those used for edible product preparation or storage; the physical separation requirement is a structural safeguard against cross-contamination — condemned and inedible materials cannot pass through edible product rooms even in transit
  • § 314.3 — Establishments without tanking: at smaller establishments that lack on-site rendering capability, condemned carcasses and parts must be denatured (with carbolic acid, fuel oil, kerosene, or another FSIS-approved denaturant) before leaving the establishment; denaturation renders the condemned material unfit for food use through chemical alteration and ensures inspectors can visually verify that condemned material has been treated; the denatured material is then transported to an approved off-site renderer
  • § 314.5 — Inedible rendered fats: rendered fat derived from condemned or inedible materials at official establishments must be denatured before shipment — distinguishing it from edible animal fats (tallow, lard) that move in commerce for human food; the denaturation requirement applies to both fat produced from condemned animals and fat from animals that were slaughter-passed but where the fat was trimmed as inedible
  • § 314.7 — Routing of condemned carcasses: carcasses condemned on ante-mortem inspection (before slaughter) shall not pass through rooms or compartments where edible products are prepared, handled, or stored; the routing requirement prevents the physical path of a condemned animal from crossing edible product areas — a key biosecurity measure in slaughter plant design
  • § 314.8 — Dead animal carcasses (DOAs): with limited exceptions, no animal that died other than by slaughter may be brought onto the premises of an official establishment; this categorical prohibition against DOA carcasses reflects the difficulty of reliably determining the cause of death without ante-mortem observation, and prevents condemned-cause deaths (disease, suffocation, injury) from entering the establishment through a side door
  • § 314.9 — Research and educational specimens: condemned or inedible materials (including embryos and parasite specimens) may be released for educational, research, or other non-food purposes under a permit from the circuit supervisor; the permit system maintains FSIS control over all condemned material even when the destination is a laboratory rather than a renderer
  • § 314.10 — Liver condemnations for parasites: livers condemned for parasitic infestation (hydatid cysts, flukes) may in some circumstances be shipped to rendering plants outside the official establishment rather than tanked on-site, subject to FSIS controls on loading and transportation
  • § 314.11 — Certain condemned products for non-food use: condemned carcasses from animals with specific conditions (e.g., advanced tuberculosis or other diseases where the carcass material has non-food industrial or research value) may be shipped from an official establishment only for non-food purposes with FSIS permission; the approved non-food uses include rendering, research, and industrial processing

  Part 314 closes the enforcement loop opened by Parts 309, 310, and 311: once FSIS condemns a carcass or part, Part 314 controls every subsequent step until the material is permanently removed from any possibility of human food use. The denaturation requirement is the critical control — FSIS-approved denaturants (carbolic acid, fuel oil, Bitrex) are added in amounts and ways that make the condemned material visually identifiable and physically repellent, ensuring that any subsequent diversion would be immediately apparent. Condemned material cannot simply be re-labeled or have its marks removed; denaturing is a chemical change that survives transport and cannot be readily reversed. FSIS inspectors are present during all phases of condemned product handling at official establishments, and seal or lock rendering tanks to maintain chain of custody. The framework is a direct legacy of early 20th-century scandals — Upton Sinclair's The Jungle documented condemned meat being diverted back into the food supply in pre-FMIA Chicago plants. No major Part 314 amendments since 1999 (64 FR 56416, October 1999 — updated denaturant specifications).

• 9 CFR Part 327 — Imported Products (25 sections — FSIS regulations implementing 21 U.S.C. § 620's requirement that imported meat products meet standards equivalent to domestic FSIS inspection; governs the equivalence determination process, port-of-entry reinspection, labeling requirements, and refusal of entry for non-compliant products). Part 327 is the regulatory implementation of the U.S. meat import system, which combines an upstream equivalence determination (is the foreign inspection system as good as ours?) with a downstream reinspection program (do these specific shipments actually comply?):

  • § 327.2 — Eligibility of foreign countries: the most consequential section — no country may export meat or meat products to the United States until FSIS has determined that the country's inspection system is equivalent to the U.S. system in the protection it provides; FSIS conducts document reviews of foreign food safety laws, audits of foreign inspection programs, and on-site verification visits to foreign establishments; countries receive an equivalence determination for specific product types (e.g., a country may be eligible to export fresh beef but not poultry); the current list of eligible countries (about 35) and their approved products is maintained in an FSIS compliance guide; loss of equivalency status — which can happen after a serious food safety incident or failed audit — results in immediate import suspension; equivalency determinations are also the primary leverage point in trade negotiations, since access to the U.S. market is a significant economic benefit
  • § 327.3 — No product without compliance: no meat product may be imported unless it comes from a FSIS-eligible country, from a FSIS-certified foreign establishment, and under a foreign inspection certificate; meeting all three conditions is a prerequisite — a product from an eligible country but a non-certified plant cannot enter
  • § 327.4 — Foreign inspection certificate requirements: each shipment must be accompanied by a certificate from the foreign competent authority attesting that the product was inspected and passed under their system; the certificate must identify the establishment, product type, amount, and the certifying official; FSIS uses the certificate as the primary shipping-level documentation — inspectors at ports of entry review certificates before opening containers
  • § 327.10 — Port-of-entry reinspection: FSIS program inspectors at designated ports of entry reinspect every consignment of imported meat — this is a 100% reinspection rate at the documentation level (certificates, labeling, condition of packaging), with physical sampling applied to a statistical subset; inspectors may take product samples without cost to the importer for laboratory testing; reinspection covers product identity (does it match the certificate?), labeling compliance, and physical condition (temperature, packaging integrity, evidence of spoilage or adulteration)
  • § 327.13 — Refusal of entry: products that fail reinspection are refused entry and must be destroyed under FSIS supervision, re-exported, or otherwise disposed of under FSIS control; refused products may not enter U.S. commerce; FSIS notifies CBP of any refusal; repeat violations from a specific foreign establishment can result in FSIS recommending removal of the establishment from the eligible list — effectively banning all imports from that plant
  • § 327.14 — Marking requirements: imported products must be marked with their country of origin and the official import inspection legend of the exporting country; all labeling (ingredients, nutrition facts, allergen statements) must comply with U.S. standards (9 CFR Part 317); foreign language labels that do not comply with U.S. requirements may not be used
  • § 327.16 — Small importations for personal use: any product in a quantity of 50 pounds or less imported by an individual for personal use (not for sale or commercial distribution) may enter without a foreign inspection certificate; this is the "personal baggage" exemption that allows travelers to bring limited amounts of foreign-inspected meat for personal consumption — it does not create any exemption for commercial importers or food service buyers
  • § 327.21 — Boneless manufacturing meat procedures: chilled fresh and frozen boneless manufacturing meat (bulk beef, pork, or veal used as a raw material for further processing) is subject to specific sampling and residue testing at port of entry — a higher-risk category given the volume imported and the difficulty of post-import tracing if contamination is found; sampling involves taking cores from frozen blocks for microbiological and residue analysis before the shipment is released

  The equivalence-plus-reinspection model reflects a deliberate policy architecture: rather than requiring foreign governments to apply U.S. regulations verbatim (which would be diplomatically untenable and incompatible with WTO rules), the U.S. accepts foreign inspection systems that achieve equivalent public health outcomes through different means. WTO's SPS Agreement specifically permits equivalence-based import conditions, and the U.S. model — periodic foreign audits combined with port reinspection — has become a template for food safety import programs globally. The practical consequence: imported meat from FSIS-eligible countries is subject to more pre-market screening than domestic product (which receives continuous in-plant FSIS inspection rather than port-of-entry sampling), but the screening is probabilistic rather than deterministic.

• 9 CFR Part 316 — Marking Products and Their Containers: the FSIS regulations specifying which official marks must appear on inspected meat products, how those marks must be applied, and what devices may be used to apply them. The official inspection legend is the physical evidence that a product passed federal inspection; Part 316 ensures its integrity and uniformity. Key provisions:

  • § 316.1 — Official marks: all official marks (the inspection legend, "U.S. Condemned," "U.S. Retained," "U.S. Suspect") are the exclusive property of the federal government; devices used to apply official marks — stamps, stencils, brand dies, roller brands — must be approved by the FSIS Administrator before use; official mark devices cannot be altered, loaned, or removed from official establishments without FSIS authorization; this control over the physical marking instruments prevents counterfeiting and unauthorized use of the USDA inspection legend
  • § 316.2 — Products passing inspection: every inspected and passed meat product and its immediate container must bear the official inspection legend containing the establishment number assigned to the official establishment where the product was prepared; the legend format for meat (as opposed to poultry) uses the circular USDA mark with "USDA" and "EST." followed by the establishment number; the establishment number allows FSIS to trace any recalled product to the specific plant of origin
  • § 316.3 — Branding ink and application: ink used for branding carcasses and cuts must be approved by the FSIS Administrator; beef and pork inspection legend ink must be purple (using a violet dye approved by FDA as safe for human consumption); the purple color is intentional — it visually confirms the mark is authentic; use of unapproved ink or ink colors is a labeling violation; establishments must maintain an adequate supply of approved ink and must not substitute commercial dyes or inks
  • § 316.5 — Sausage and similar products: when meat is chopped, ground, or comminuted beyond recognition of the original cut (sausage, ground beef, luncheon meat), the official inspection legend must appear on the outermost container or package rather than on the product itself; the legend on packaged sausages must include the establishment number; products labeled under standardized names (Part 319) must bear labels with the inspection legend that have been approved through FSIS's label approval system before commercial sale
  • § 316.8 — Equine products: meat from horses, mules, and other equines that passes inspection must be plainly and legibly marked "U.S. Inspected and Passed" by inspection of the USDA, together with the establishment number; equine products must also be marked on the immediate container to distinguish equine from bovine and porcine products — this distinction prevents equine meat from being commingled with or substituted for beef or pork
  • § 316.14 — Tank cars and large containers: when inspected products are shipped in tank cars or large bulk containers (typically rendered edible fats, lard, or tallow), the official mark must be applied to the shipping document accompanying the container rather than to the container itself; the shipping document must clearly identify the product, the producing establishment, and the inspector's certification; tank-car shipments are a primary vehicle for bulk edible fat transport between rendering plants and food manufacturers
  • § 316.15 — Inedible and condemned products: inedible product (products condemned for animal food, rendering, or industrial use) must be marked "U.S. Inspected and Condemned — for rendering purposes only" or an equivalent official condemnation mark; inedible product must be denatured (using approved denaturing agents such as charcoal, crude carbolic acid, or fuel oil) to prevent diversion to human food; the denaturing requirement is verified by the FSIS inspector before condemned product leaves the official establishment
  • § 316.16 — "Not for Sale" marking: meat or poultry prepared on a custom basis for a specific individual (custom-exempt slaughter — the owner of the animal who will personally consume the product) must be marked "Not for Sale" in letters at least one-half inch high; this prevents custom-exempt product — which bypasses commercial inspection requirements — from entering the commercial food supply; an establishment that removes or obscures the "Not for Sale" mark or allows custom-exempt product to be sold commercially commits a Federal Meat Inspection Act violation

  Part 316 functions as the integrity layer of the entire federal meat inspection system. The official inspection legend on beef and pork — that purple circular mark — is a federal government symbol representing federal veterinary oversight; Part 316's controls over who can possess marking devices, what ink may be used, and how the mark must appear on each product type ensure the mark is not counterfeited or misrepresented. For enforcement purposes, FSIS can verify the authenticity of any inspected product's mark through the establishment number: every product bears the number of the official establishment where it was produced, enabling FSIS to trace a recalled product backward through the supply chain. No major standalone rulemakings in recent years; Part 316 marking requirements have been stable since the foundational FMIA implementing regulations (36 FR 11903, June 22, 1971), with device approval procedures updated administratively.

• 9 CFR Parts 301–391 — FSIS Meat Inspection Regulations (ante-mortem/post-mortem inspection, sanitation, HACCP, labeling, custom exempt operations)

• 9 CFR Parts 381–391 — FSIS Poultry Products Inspection Regulations (poultry processing, inspection, labeling, sanitation)

• 9 CFR Part 500 — FSIS rules of practice (enforcement actions, suspensions, withdrawals of inspection)

The USDA Food Safety and Inspection Service regulations implementing HACCP requirements for meat and poultry live at 9 CFR Part 417 — Hazard Analysis and Critical Control Point (HACCP) Systems. Every federally inspected meat and poultry establishment must operate under a HACCP plan as a condition of receiving inspection services. Key provisions:

• § 417.2 — Every official establishment must conduct a written hazard analysis identifying food safety hazards reasonably likely to occur in production (biological, chemical, physical), then develop a HACCP plan designating critical control points (CCPs), critical limits, monitoring procedures, and assigned responsibilities
• § 417.3 — Corrective actions: when a deviation from a critical limit occurs, the establishment must identify and eliminate the cause, ensure the CCP is back under control, prevent recurrence, and ensure no adulterated product enters commerce; unanticipated deviations require product segregation and hold pending review
• § 417.4 — Validation and verification: establishments must initially validate their HACCP plan (testing that CCPs and critical limits function as intended), then continuously verify through instrument calibration, direct observation of monitoring activities, and records review; reassessment is required whenever a process change could affect food safety
• § 417.5 — Records: establishments must maintain the written hazard analysis, HACCP plan with supporting decision-making documents, monitoring records for each CCP, calibration records, corrective action records, and verification results — each signed or initialed at the time of the event and retained for at least one year (two years for shelf-stable products)
• § 417.6 — Inadequate HACCP systems: FSIS may find a system inadequate if the plan doesn't meet regulatory requirements, personnel don't follow the plan, corrective actions aren't taken, records aren't maintained, or adulterated product is produced or shipped — any of which can trigger suspension of inspection
• § 417.7 — Training: only individuals who have completed a course covering the seven HACCP principles and HACCP plan development may write or modify a HACCP plan; this individual need not be a plant employee but must have verifiable training credentials
• § 417.8 — Agency verification: FSIS verifies HACCP adequacy through plan review, CCP record audits, critical limit assessment, direct observation at CCPs, and product sampling — establishing the agency's independent check on each establishment's self-monitoring

HACCP transformed FSIS inspection from a primarily organoleptic (look-and-smell) system to a science-based, prevention-oriented framework. Before HACCP, inspectors judged carcasses by appearance and smell; the 1993 Jack in the Box E. coli O157:H7 outbreak — which killed four children and sickened 700 — accelerated HACCP's mandatory adoption in 1996. Under HACCP, each establishment takes primary responsibility for its food safety outcomes; FSIS shifts from line-by-line inspection to verifying that establishments' own control systems work. Pathogen reduction performance standards (Salmonella, E. coli O157:H7) layer on top of HACCP — plants that repeatedly fail FSIS testing can face loss of inspection even if their HACCP records appear compliant.

Recent rulemakings: A 2020 amendment (85 FR 68672) clarified HACCP plan validation requirements. FSIS has proposed designating Salmonella an adulterant in certain raw poultry products — a shift that would require HACCP plans to treat Salmonella as a food safety hazard requiring a CCP, not merely a performance standard to meet through statistical sampling.

• 9 CFR Part 319 — Definitions and Standards of Identity or Composition (57 sections across 15 subparts — the FSIS product standard monograph governing the specific requirements each named meat product must meet before it can legally bear that name; sets minimum meat content, maximum fat content, maximum moisture content, permissible ingredients, and composition standards for over 60 named meat products; these standards are what give terms like "corned beef," "frankfurter," "chili con carne," and "breakfast sausage" legal meaning under federal law):

  • § 319.1 — General labeling standard: products for which FSIS has established a standard of identity must use the precise product name prescribed in Part 319; claims of "substitute" or "imitation" status must meet separate requirements under § 319.10; a product that does not meet the standard of identity for a named product cannot use that name regardless of how similar it tastes
  • §§ 319.100–319.106 — Corned beef: "Corned Beef" must be prepared from beef briskets, navels, clods, middle ribs, rounds, rumps, or similar cuts; curing solution application cannot result in a finished weight more than 20% above the fresh meat weight (§ 319.101 for brisket); corned beef round and other cuts are similarly weight-limited; the standard prevents water-pumping practices that would dilute meat with brine weight
  • §§ 319.140–319.180 — Sausage: "Sausage" is defined as coarse or finely comminuted meat food product prepared from one or more kinds of meat or meat byproducts; the subpart then defines numerous named varieties:
    • § 319.141 — Fresh Pork Sausage: prepared with fresh or frozen pork (no pork byproducts); fat content limited to 50% of finished product weight; may contain Mechanically Separated Species as specified; moisture content must not exceed 3% above actual formula moisture; seasonings (sage, pepper, red pepper, thyme) permitted
    • § 319.143 — Breakfast Sausage: prepared from fresh/frozen meat or meat and meat byproducts; may contain Mechanically Separated Species; ≤50% fat; if labeled "country style" must be prepared from pork only
    • § 319.145 — Italian Sausage: must contain ≥85% meat (or meat and fat combination) with ≤35% fat; must be prepared with fennel or anise (the flavor characteristic that legally defines Italian sausage); may be cured or uncured; if labeled "hot" or "sweet," specific ingredient profiles apply
    • § 319.180 — Frankfurter, Hot Dog, Wiener, Bologna: may contain meat and meat byproducts from permitted species; ≤30% fat; ≤10% collagen protein from the skin of the animal; ≤40% water; if any poultry meat is included, it must be disclosed as part of the product name; frankfurters with byproducts must be labeled "with byproducts" or "with variety meats" — allowing consumers to identify products made exclusively from skeletal muscle meat
  • §§ 319.300–319.303 — Canned meat food products: chili con carne must contain ≥40% meat by weight of fresh meat (§ 319.300); chili con carne with beans requires ≥25% meat (§ 319.301); hash must contain ≥35% meat by cooked and trimmed weight (§ 319.302); corned beef hash must contain beef, potatoes, curing agents, and may contain specific optional ingredients only

  Part 319 standards originated with the 1906 Pure Food and Drug Act's response to adulteration of meat products — sausage and processed meats were notorious for including diseased animal parts, water, and non-meat fillers. The standards function as anti-fraud rules: a product labeled "corned beef" that is actually water-pumped beef with only 80% meat content is adulterated and misbranded. FSIS enforces Part 319 through label approval (no product can bear a standardized name without an approved label) and through in-plant verification that formulae and processes match the approved label. For consumers, the practical implication is that if you buy a product labeled with a standardized name, you know the minimum meat content — "all beef frankfurter" without byproducts is a legally meaningful claim under Part 319, not just marketing. No major amendments since the 1990s; the standards have remained largely stable since their promulgation, though FSIS has issued guidance on Mechanically Separated Species labeling requirements.

• 9 CFR Part 548 — Preparation of Fish Products: the FSIS regulation governing catfish and other fish product processing at federally inspected establishments — a category brought under FSIS jurisdiction by the 2008 Farm Bill and finalized in 2016. Key provisions:

  • § 548.1 — All preparation processes at official fish establishments are subject to inspection by FSIS personnel; processing operations must comply with 9 CFR Part 303.1 unless explicitly exempted; all equipment, surfaces, trucks, trays, tanks, vats, and containers used in fish product preparation must be maintained in a sanitary condition — equivalent standards to those applied to red meat and poultry
  • § 548.2 — Ingredient and article requirements: all ingredients and other articles used in fish product preparation — including spices, preservatives, coatings, additives, and water — must be clean, sound, healthful, wholesome, and otherwise such as will not result in the product being adulterated; this is the foundational quality standard for inputs
  • § 548.3 — Sampling authority: FSIS may take samples of fish products, water, dyes, chemicals, preservatives, spices, and other articles from official establishments at any time without cost to the program; samples may be analyzed for pathogens, residues, and adulterants; frequent sampling is how FSIS verifies that establishments' HACCP plans are controlling hazards effectively
  • § 548.5 — Ready-to-eat fish products: ready-to-eat fish products (smoked fish, fish sticks already cooked, fish spreads, etc.) are subject to the requirements in 9 CFR Part 430 — the FSIS Listeria rule governing ready-to-eat products in federally inspected establishments; this is the most stringent FSIS production standard, requiring sanitation controls to prevent post-lethality Listeria contamination
  • § 548.7 — Drug residues: edible fish tissues with drug residues exceeding tolerance levels specified in 21 CFR Part 556 (FDA's tolerances for residues of new animal drugs in food) are adulterated under the Federal Food, Drug, and Cosmetic Act; FSIS enforces this by refusing to pass fish carcasses or product that tests positive for drug residue — particularly relevant for farmed catfish and tilapia where antibiotic use has been documented
  • § 548.8 — Polluted water contamination: in the event polluted water (including flood water) enters an official fish establishment, all products and ingredients rendered adulterated by the water must be condemned; after the water recedes, the establishment must follow FSIS procedures for returning to production, including sanitization verification; this provision addresses the vulnerability of fish processing plants in flood-prone areas near waterways

  The FSIS fish inspection program was a significant expansion of federal food safety authority when USDA finalized the catfish inspection rule (finalized June 2016, implementing the 2008 Farm Bill). Previously, fish were regulated exclusively by FDA under the HACCP seafood rule (21 CFR Part 123). The 2008 Farm Bill transferred authority over catfish (and "catfish-like fish") to USDA/FSIS, triggering years of rulemaking and trade controversy — particularly with Vietnam and China, whose catfish exports faced new inspection requirements. Part 548 applies to siluriformes (catfish family fish) at federally inspected establishments; non-catfish seafood remains under FDA's jurisdiction at 21 CFR Part 123.

• 9 CFR Part 557 — Importation of Fish and Fish Products (21 sections — the FSIS framework for importing fish and fish products, the companion to Part 548's domestic processing rules and Part 327's meat import framework; authority: 21 U.S.C. §§ 601 and 602 (FMIA), applied to fish under the 2008 Farm Bill):

  Part 557 applies the same equivalence-and-reinspection architecture to fish imports that Part 327 applies to meat imports. No fish or fish product capable of use as human food may enter the United States unless it comes from a FSIS-eligible country with a recognized equivalent inspection system, from a FSIS-certified foreign establishment, and with a foreign inspection certificate.

  • § 557.1 — Definitions: "import" means bringing fish products within U.S. territorial limits by any mode (land, air, or water); "offer for entry" means presenting the imported product to FSIS for reinspection; "entry" is the point at which reinspected product receives the official FSIS inspection mark and is cleared for U.S. commerce; the Part applies to all fish and fish products capable of use as human food — the same human food threshold as the meat inspection program
  • § 557.2 — Foreign country eligibility: no fish or fish product from a foreign country may be imported unless FSIS determines the foreign country maintains inspection standards equivalent to U.S. requirements; eligibility is product-specific — a country may be eligible to export certain species (catfish, tilapia, pangasius) but not others; FSIS conducts document reviews and on-site audits of foreign inspection programs to establish and maintain equivalency determinations; Vietnam and China — major catfish/pangasius exporters — were subject to FSIS equivalency reviews when the FSIS catfish program launched, and catfish from those countries must now pass reinspection at U.S. ports of entry
  • § 557.10 — Port-of-entry reinspection: the same reinspection procedures that govern meat imports under § 327.10 apply to fish; FSIS inspectors at designated ports of entry reinspect consignments, may take samples for laboratory analysis without cost to the importer, and must check product identity, labeling, and physical condition
  • § 557.13 — Reporting to Customs: when fish or fish products are refused entry, FSIS inspectors notify the Port Director of U.S. Customs and Border Protection and the importer of record; the refused products must be destroyed, re-exported, or disposed of under FSIS supervision — they cannot enter U.S. commerce
  • § 557.16 — Small importations: any fish or fish product imported by an individual in 50 pounds or less for their own personal consumption (not for sale) may enter without a foreign inspection certificate — the same personal-baggage exemption applicable to meat imports under § 327.16
  • § 557.17 — Returned U.S.-inspected fish: U.S.-inspected and marked fish products that were exported and are being returned from foreign countries may be readmitted without complying with Part 557 reinspection requirements upon FSIS approval — preventing the paradox of requiring domestic product to be reinspected as an import when it comes back

  Recent rulemakings: 84 FR 65269 (November 2019) — technical amendments to align fish import procedures with updated Part 327 meat import requirements; 80 FR 75616 (December 2015) — original FSIS catfish inspection rule establishing the framework implemented in Part 557.

• 9 CFR Part 313 — Humane Slaughter of Livestock: the FSIS regulations implementing the Humane Methods of Slaughter Act (7 U.S.C. §§ 1901–1906), which requires that all livestock slaughtered at federally inspected establishments be rendered insensible to pain before shackling, hoisting, throwing, casting, or cutting. Part 313 specifies the approved methods and physical requirements for humane handling:

  • § 313.1 — Livestock pens, driveways and ramps: pens and driveways must be maintained free from sharp or protruding objects that may cause injury or pain; floors must provide good footing (slip-resistant or waffled surfaces, cleated ramps, sand in winter); U.S. suspects and disabled livestock must be provided covered pens protecting them from adverse climatic conditions while awaiting inspector disposition; pens must be arranged to minimize sharp corners and direction reversals
  • § 313.2 — Handling of livestock: all livestock must be handled gently and with a minimum of excitement and discomfort; animals must not be dragged while conscious; animals that cannot walk must be moved on conveyances; electric prods may be used only when necessary to move animals, at the lowest effective voltage, and must not be used on faces, ears, anal region, or genitalia; the regulation sets the behavioral standards that FSIS inspectors observe during ante-mortem handling
  • § 313.15 — Mechanical stunning (captive bolt): the most widely used stunning method — the captive bolt stunner must produce immediate unconsciousness before shackling; applied to cattle, sheep, swine, goats, calves, horses, mules, and equines; the driving of animals to the stunning area must use minimal electrical prod contact; shackling, hoisting, throwing, or cutting before the animal is insensible is an immediate noncompliance requiring FSIS to halt slaughter; FSIS inspectors observe stunning operations and may require plant personnel to re-stun an animal before slaughter proceeds
  • § 313.16 — Mechanical stunning (gunshot): firearms delivering a bullet or projectile to produce immediate unconsciousness with a single shot; the same pre-shackling unconsciousness requirement applies; used primarily in small plants and for certain species; penetrating captive bolt is more common at large-scale operations because it allows more consistent stunning without live ammunition
  • § 313.30 — Electrical stunning: used primarily for swine and sheep; the electrical charge must render the animal insensible; frequency, voltage, and amperage standards apply; water-bath stunning (used in poultry — covered by Part 381, not Part 313) is not addressed here
  • § 313.50 — Ritual slaughter (kosher/halal): slaughter in accordance with the Jewish (shechita) or any other religious ritual is explicitly recognized as a humane method under the Act; these methods — rapid severance of the carotid artery with a sharp blade — are not required to pre-stun the animal, consistent with the Humane Methods of Slaughter Act's religious exemption; FSIS inspectors are present during ritual slaughter but do not require pre-stunning

  FSIS enforces Part 313 through continuous in-plant inspection. When an inspector observes humane slaughter violations — animals not rendered insensible before shackling, rough handling, or use of prohibited electric prod locations — FSIS issues a Noncompliance Report and may suspend inspection, which halts all slaughter operations at the plant until corrective action is verified. Suspension is the most powerful FSIS enforcement tool because stopping inspection means stopping production. The Humane Methods of Slaughter Act has no criminal penalty provision of its own — enforcement runs entirely through the FSIS inspection system, which means plants that lose inspection status face commercial consequences rather than fines. USDA reports periodic data on humane handling violations in its publicly released enforcement records. No major rulemakings since 2004 (69 FR 1891, January 2004 — revised to cover expanded facility types).

• 9 CFR Part 309 — Ante-Mortem Inspection (19 sections): the FSIS rules governing the examination of every animal before it enters the kill floor — the mandatory first gate of the federal inspection system under 21 U.S.C. § 601 et seq. Every animal offered for slaughter at an official establishment must be examined by an FSIS inspector while alive, and the disposition decision made ante-mortem determines what can happen to the carcass post-mortem. The Part 309 system uses three official designations applied through official marks: U.S. Suspect (requires additional examination before slaughter can proceed), U.S. Condemned (prohibited from slaughter for human food), and U.S. Passed (cleared for slaughter). Key provisions:

  • § 309.1 — Mandatory inspection of all slaughter animals: all livestock offered for slaughter must be examined and inspected on the premises of the official establishment; inspection happens at the pens, chutes, and lairages — the inspector observes each animal's gait, posture, respiration, eyes, skin, and visible mucous membranes; animals showing signs of abnormality are separated for closer examination; the ante-mortem pass is a prerequisite for entering the kill floor
  • § 309.2 — Livestock suspected of being diseased: animals suspected of disease or affected with certain conditions are identified as U.S. Suspects and held for further examination; the inspector must document the basis for suspicion; at post-mortem, FSIS inspectors re-examine the carcass more intensively for evidence of the suspected condition; the ante-mortem flag travels with the animal through slaughter
  • § 309.3 — Dead, dying, disabled, or diseased (4-D animals): livestock that are dead, dying, or in a moribund condition on the establishment premises are condemned immediately and may not be slaughtered for human food; disabled animals (down cattle, dragging animals) must be examined and are typically condemned; these "4-D" animals are a significant source of potential adulteration because stress, disease, and post-mortem degradation make the meat unfit — the categorical prohibition prevents any temptation to slaughter them for economic recovery
  • §§ 309.4–309.9 — Disease-specific condemnation rules: Part 309 contains specific ante-mortem condemnation rules for conditions detectable on live inspection: metabolic disorders, toxic conditions, nervous system disturbances (§ 309.4); hog cholera (§ 309.5 — any swine showing hog cholera signs is U.S. Condemned); epithelioma of the eye (§ 309.6 — advanced "cancer eye" cattle); anthrax (§ 309.7 — suspected anthrax triggers immediate quarantine of all animals in the pen and disinfection of all pens and driveways, because anthrax spores survive indefinitely in soil); anasarca/generalized edema in cattle (§ 309.8); swine erysipelas (§ 309.9)
  • § 309.12 — Emergency slaughter: when an animal is injured and must be slaughtered immediately (e.g., a broken leg), the FSIS inspector must be notified before slaughter and must perform ante-mortem inspection before the emergency slaughter proceeds; the emergency slaughter animal receives intensified post-mortem examination because its condition increases the likelihood of systemic disease or contamination
  • § 309.13 — Disposition of condemned livestock: U.S. Condemned animals must be killed by the official establishment and the carcass destroyed — they cannot leave the establishment alive; condemned carcasses must be disposed of in ways that prevent diversion for human food (typically rendering with denaturing agents); the inspector verifies disposal
  • § 309.15 — Vesicular diseases: animals showing signs of foot-and-mouth disease, vesicular stomatitis, vesicular exanthema, or swine vesicular disease trigger immediate notification to state and federal livestock officials and a hold on all animals in the affected pen; these foreign animal disease alerts are the most urgent ante-mortem decisions because the implications extend beyond the establishment to national disease control
  • § 309.16 — Biological residue suspects: animals suspected of containing antibiotic or veterinary drug residues above legal tolerances are identified as U.S. Suspects; they must be withheld from slaughter until the residue status is resolved through FSIS testing or the inspector's determination; slaughter of a residue-suspect animal without proper testing can result in residue-contaminated meat entering commerce

  Part 309's ante-mortem inspection is the only point in the federal inspection system where a live animal is evaluated before becoming food. The ante-mortem decision shapes everything that follows: a passed animal receives post-mortem inspection under standard protocols; a suspect animal receives intensified post-mortem scrutiny; a condemned animal never enters the food chain. The inspector's ability to observe each animal's behavior, movement, and appearance while alive detects conditions — neurological disease, respiratory distress, systemic infection — that may not be detectable from carcass examination alone. FSIS ante-mortem inspection was last substantially amended in 81 FR 46577 (July 2016), which updated swine market sorting procedures under the New Swine Slaughter Inspection System.

• 9 CFR Part 310 — Post-Mortem Inspection (26 sections): the procedural and pathological rules governing what FSIS inspectors examine on the slaughter floor after an animal is killed and dressed. Part 311 (above) specifies what condemns a carcass; Part 310 specifies how the examination is conducted and what must happen to specific organs and tissues at the line. Together, Parts 310 and 311 form the complete post-mortem inspection framework for livestock under the Federal Meat Inspection Act.

  Inspection mechanics (§§ 310.1–310.2): FSIS must conduct a careful post-mortem examination of every carcass and all viscera at the time of slaughter; inspectors must be present at the rate of one inspector per line speed established in FSIS staffing standards — the inspector cannot be removed or reduced below minimums; each carcass must be identifiable with its severed parts (head, tail, tongue, thymus gland, and viscera) through the inspection process so that a condemnation decision on any part can be applied to the correct carcass (§ 310.2); this traceability is what prevents condemned viscera from returning to a passed carcass.

  Mandatory organ disposition rules: several tissues that historically entered the human food supply are permanently restricted:

  • § 310.15 — Thyroid glands and laryngeal muscle tissue: prohibited from human food (thyroid glands contain thyroid hormone; laryngeal tissue may harbor prion contamination); establishments may not save these for food use regardless of appearance
  • § 310.16 — Lungs: livestock lungs shall not be saved for use as human food — a categorical exclusion (unlike poultry lungs, which are permitted); in practice, U.S. law prohibits haggis-style preparations using livestock lung, though lung can be used in pet food; lungs found diseased are condemned
  • § 310.17 — Mammary glands: lactating and diseased mammary glands of cattle, sheep, swine, and goats must be removed without opening the milk ducts; only non-lactating, non-diseased udder tissue from beef cattle may be sold for food under specific labeling

  BSE Specified Risk Materials (§ 310.22): the most consequential post-mortem provision for food safety — FSIS identifies the following Specified Risk Materials (SRMs) from cattle as potential BSE (bovine spongiform encephalopathy) vectors and requires their removal and destruction before any beef enters the human food chain:

  • From cattle of all ages: tonsils and distal ileum of the small intestine (must be removed and destroyed; tonsils are the primary SRM from young animals)
  • From cattle 30 months of age or older: the skull, brain, trigeminal ganglia, eyes, vertebral column, spinal cord, and dorsal root ganglia; the key age threshold (30 months) reflects the scientific understanding of BSE incubation — abnormal prion accumulation in nervous tissue increases with age; establishing age is required (via dentition examination or records), and if age cannot be determined, the 30-month rule applies
  • Prohibited uses: SRMs may not be used for human food, cosmetics, or dietary supplements; they must be disposed of through rendering (inedible), incineration, or landfill under FSIS control; commingling SRM-containing trim with non-SRM trim is a violation; the SRM rule has been in effect since January 2004 (69 FR 1862) following the first detection of BSE in U.S. cattle and is the cornerstone of U.S. BSE consumer protection

  Antibiotic and drug residue control (§ 310.21): FSIS maintains a National Residue Program that identifies animals at risk for drug residue violations (calves from non-formula-fed veal operations, bob veal, heavy veal, and animals with clinical signs suggesting drug treatment); animals flagged at ante-mortem are sequestered post-mortem for tissue sampling before release; samples are analyzed for sulfonamides, beta-lactams, aminoglycosides, and other veterinary drugs; carcasses with confirmed violative residues above EPA/FDA action levels are condemned and cannot enter commerce; the testing protocol at § 310.21 specifically targets calf carcasses and veal — historically the highest-residue category; results feed into USDA's published Red Book (annual residue violation data) and trigger follow-up audits of the farm of origin.

  Carcass sanitation (§ 310.18): carcasses, organs, and other parts must be handled in a sanitary manner throughout post-mortem operations; fecal contamination is an automatic noncompliance — any carcass with visible fecal material, ingesta, or milk must be trimmed or washed before it may proceed; spillage of intestinal contents during evisceration triggers immediate line stop, trimming, and reinspection; FSIS inspectors may place a U.S. Retained tag on any carcass pending additional inspection or laboratory testing.

  The post-mortem inspection system under Part 310 is conducted under the oversight of the Inspection Program Personnel (IPP) — approximately 8,000 FSIS inspectors working in roughly 6,500 federally inspected establishments. FSIS has piloted New Swine Slaughter Inspection System (NSIS) (84 FR 52300, October 2019) — reducing FSIS inspection staffing at hog plants while requiring establishments to take on more off-line food safety responsibilities; hog carcass identification and viscera tracking requirements under § 310.2 were updated accordingly. For cattle, the traditional continuous inspection model remains; proposals to shift cattle to a similar HIMP (Hazard Analysis and Critical Control Points-Based Inspection Models Project) model have faced Congressional opposition.

• 9 CFR Part 318 — Entry into Official Establishments and Reinspection and Handling of Product: the regulations governing what products and ingredients may enter a federally inspected meat establishment and how those products are handled, reinspected, and processed once inside. Part 318 sits at the gateway between the slaughter floor (covered by Parts 309–313) and the finished-product labeling and standards system (Part 319); it establishes the rules for products that move between stages of processing or arrive from outside the establishment.

  • § 318.1 — Products that may enter official establishments: only products and articles that are safe and suitable for use in human food, or that meet specific conditions for entry, may be brought into an official establishment; products from other official establishments (already bearing the USDA inspection mark) may enter directly; products from non-official sources must be received, examined, and either passed or condemned before incorporation; this prevents uninspected raw materials from contaminating the inspected production environment
  • § 318.2 — Reinspection, retention, and disposal of products: FSIS inspectors may reinspect, retain, and if necessary condemn any product at any point in an official establishment — inspection is not a one-time gate at entry; FSIS inspectors may apply a U.S. Retained tag to any product pending additional examination, laboratory testing, or disposition decision; the establishment must not move or process retained product without FSIS authorization; condemned products are destroyed under FSIS supervision with denaturing to prevent food-use diversion
  • § 318.16 — Pesticide chemical residues: meat products at official establishments may not contain pesticide chemical residues in excess of tolerances established by the EPA under the Federal Food, Drug, and Cosmetic Act; FSIS inspectors may collect samples of any product for pesticide residue analysis; product testing positive for residues above tolerance is condemned; this section integrates the EPA tolerance system with the FSIS inspection system — the federal safety floor for pesticide residues in meat is set by EPA, enforced at the point of slaughter and processing by FSIS
  • § 318.17 — Requirements for the production of cooked beef and cooked corned beef: one of the most consequential food safety standards in Part 318 — specifies the minimum internal temperature requirements for cooked beef and corned beef to ensure destruction of pathogens (particularly E. coli and Salmonella); cooked beef products must be heated to achieve lethality for pathogens specified in the FSIS performance standards; time-temperature combinations are prescribed; the roast beef production standard requires the product to reach minimum internal temperature throughout; establishments may use FSIS-validated alternative time-temperature schedules if they demonstrate equivalent pathogen lethality; the standard was the subject of FSIS enforcement action following the 1993 E. coli O157:H7 outbreak (Jack in the Box) and has been reinforced by subsequent interpretive rules
  • § 318.18 — Mechanically separated (species): mechanically separated meat (MSM) — meat product produced by forcing bones with attached meat through a sieve under pressure, yielding a paste-like product — is subject to special labeling and use restrictions; MSM produced from beef skull bones may not be used in human food because of BSE (prion) concerns; mechanically separated pork and chicken are permitted but must be declared in the ingredients statement under their common names; the calcium content of MSM is significantly higher than hand-trimmed meat (from bone fragments), which affects nutritional claims; quantity limits apply in certain standardized products (frankfurters may not contain more than specified percentages of MSM); the § 318.18 restrictions represent a compromise between utilizing a protein source that would otherwise be waste and protecting consumers from products containing elevated bone content and BSE-risk materials
  • § 318.19 — Cured pork products compliance: pork products labeled as "cured" must meet minimum standards for the curing process — specifically nitrite and nitrate levels, water activity, or equivalent antimicrobial treatments; the section addresses the public health risk posed by Clostridium botulinum in cured pork products; insufficient curing agent levels create conditions for botulism growth in packaged cured pork; FSIS inspectors verify that cured products meet Part 318.19 standards through records review (formulation records, batch records) and physical sampling; violations trigger product hold and potential recall

  Part 318's cooked beef temperature requirements and mechanically separated meat restrictions represent two of FSIS's most practically significant processing standards — standards that affect hundreds of millions of pounds of commercially produced meat annually. The cooked beef standards (§ 318.17) directly protect consumers from the most dangerous beef-borne pathogen, E. coli O157:H7, which was designated an adulterant in ground beef in 1994. The MSM restrictions (§ 318.18) reflect the post-BSE 2003 tightening of rules around beef bone products. Last major rulemaking: the cooked beef performance standards were updated in the 1990s following the 1993 outbreak; the MSM rules were substantially revised in 2004 (69 FR 1862) as part of the BSE response regulatory package.

• 9 CFR Part 431 — Thermally Processed, Commercially Sterile Products: the FSIS regulations governing canned and retort-pouched meat and poultry products — products that achieve commercial sterility through heat processing sufficient to destroy all viable microorganisms of public health significance, particularly Clostridium botulinum. Part 431 applies to any official establishment producing thermally processed shelf-stable product, including canned luncheon meat, canned stew, retort pouches, and any meat or poultry product intended to be commercially sterile. Commercial sterility allows indefinite shelf storage without refrigeration — but only if the thermal process was sufficient and container integrity is maintained.

  • § 431.1 — Definitions: "process schedule" is the validated heat treatment (temperature and time combination) required to achieve commercial sterility for a given product in a given container; "critical factor" is any property of the food or process whose variation affects the scheduled thermal process; "abnormal container" is any container showing swelling, leakage, or other signs that contents may be spoiled — the trigger for segregation and investigation in an establishment's HACCP plan
  • § 431.3 — Thermal processing: before any canned product is processed for commerce, the establishment must have a written process schedule for each product/container/retort combination; the process schedule must be established or validated by a process authority — a person with expert knowledge of the science of thermal processing, typically an academic or consulting expert; process schedules must be posted in the retort room during production; the establishment cannot choose a time and temperature without process authority validation that the combination achieves the required lethality for that specific product formulation
  • § 431.4 — Critical factors: the process schedule specifies critical factors that must be measured, controlled, and recorded during processing; for canned meat, critical factors typically include: initial product temperature (affects how quickly the container center reaches process temperature), fill weight, headspace, and container seam integrity; a process deviation — failure to meet a critical factor during processing — requires the establishment to hold all affected product, evaluate the deviation through the process authority, and either reprocess, destroy, or conditionally release after documented review; this section is the regulatory trigger for canned meat recalls
  • § 431.6 — Equipment and procedures: retorts must be equipped with temperature-indicating devices (the reference instrument) and temperature-recording devices (chart recorders or data loggers); both must be calibrated and records retained; steam distribution in retorts must be verified to ensure uniform temperature throughout the vessel — "cold spots" in retort distribution are one of the most dangerous equipment failures, allowing product in certain locations to receive less than the scheduled process; water-immersion and steam/air retorts have additional requirements for pressure control to prevent container distortion
  • § 431.7 — Processing and production records: at minimum, establishments must record for each retort run: date, product name, container code, retort identification, initial product temperature, retort temperature and time, and operator identification; these records are the documentary evidence that the scheduled process was delivered; FSIS inspectors review them during routine verification; records must be retained for three years
  • § 431.9 — Deviations in processing: whenever actual process conditions fall below the scheduled process (temperature drop, retort failure, incomplete time), the establishment must isolate and retain all affected product and evaluate the deviation before distributing product; FSIS must be notified of significant deviations; the establishment cannot self-clear a deviation without process authority review — the process authority determines whether the heat delivered was sufficient or whether destruction or reprocessing is required

  The public health rationale is anchored in botulism prevention. Clostridium botulinum spores survive inadequate thermal processing in low-acid environments (pH above 4.6, which includes most meat products); surviving spores germinate in the sealed, anaerobic can environment and produce one of the most potent neurotoxins known. A validated retort process with critical factor monitoring and documented deviation procedures is the difference between safe shelf-stable product and a potential mass-casualty event — historically, botulism outbreaks from canned products have killed multiple victims from single cans. Last major rulemaking: 64 FR 732 (January 6, 1999) — HACCP-era codification of retort processing requirements as standalone Part 431, replacing predecessor provisions in 9 CFR Part 318.

• 9 CFR Part 325 — Transportation (FSIS, 18 sections — the FSIS regulations governing the movement of meat and meat products in commerce, implementing 21 U.S.C. § 601 et seq. (FMIA) and 7 U.S.C. § 1633 (Agricultural Marketing Act); Part 325 closes a critical chain-of-custody gap: an inspected product that passes the kill floor can still become adulterated or misbranded if moved without proper documentation or in unsanitary conveyances; these rules ensure that the official inspection legend on a finished product accurately represents the condition of the product when it leaves federal oversight and enters commerce):

  • § 325.1 — Inspection legend required for transport: no person may sell, transport, offer for sale, or offer for transport any meat or meat food product in commerce unless the product bears the official inspection legend (or an exemption applies); the legend is the jurisdictional hook — its presence on the product certifies FSIS continuous inspection; a product sold without the legend where one is required is automatically adulterated under FMIA § 4 regardless of its actual physical condition; vehicle sanitation requirements apply independently of the legend requirement: trucks and other conveyances used to transport inspected products must be clean, sanitary, and free of odors likely to adulterate the product; FSIS inspectors may condemn an unsanitary conveyance and refuse to allow loading of inspected product
  • § 325.5 — Unmarked product under official seal: unmarked inspected product (product that has passed inspection but whose individual containers have not yet received the inspection legend mark) may be transported between official establishments under an official FSIS seal without individual labeling; the certificate of movement accompanies the shipment in lieu of the mark; this provision allows a slaughter establishment to ship primal cuts to a fabrication establishment where the final cut and label are applied — a common workflow in the multi-establishment supply chain; the official seal on the transport vehicle (§ 325.16) serves as the substitute for the legend during transit
  • § 325.10 — Adulterated or misbranded product in transit: when FSIS determines that an inspected and passed product may have become adulterated or misbranded after leaving the official establishment (for example, a temperature abuse event, contamination during loading, or a false-claim bill of lading), FSIS has authority to require the carrier to hold the product for reexamination and disposition; the carrier may not deliver, sell, or destroy the product without FSIS authorization; this section is the regulatory basis for FSIS "holds" at distribution centers and retail warehouses when contamination is discovered after products left the inspected establishment
  • §§ 325.11–325.13 — Inedible products and denaturing: inedible carcasses, parts, rendered grease, tallow, or other products (condemned product, 4D livestock material) may not be transported in commerce unless they have been denatured to prevent human consumption; denaturing procedures under § 325.13 require approved denaturing agents — charcoal, kerosene, crude carbolic acid, or fuel oil — applied in sufficient quantity and uniformly distributed that the product cannot be mistaken for edible material; properly denatured inedible product may be transported to rendering plants or other approved destinations; the requirement prevents condemned carcasses from being diverted to the human food supply
  • §§ 325.14–325.16 — Certificates and official seals: certificates (FSIS Form 9160-5) must accompany special shipments (products requiring additional supervision, exported products, inter-establishment transfers); carriers must retain original certificates; all waybills, transfer bills, and conductors' slips must reference the certification; official FSIS seals (used to seal railroad cars and trucks carrying inspected product) may not be broken by any unauthorized person; a carrier that breaks a seal without FSIS authorization commits a criminal violation under FMIA; emergency seal-breaking is permitted only in genuine transport emergencies (derailment, accident) and must be reported immediately to the FSIS Regional Director
  • §§ 325.20–325.21 — Dead, dying, disabled, or diseased (4D) livestock: no person engaged in commerce may sell or transport 4D livestock without FSIS authorization and inspection; conveyances used exclusively for transporting 4D livestock must be maintained separately from vehicles used for inspected product; vehicles used for 4D transport must not be used for edible products without complete cleaning and sanitization

  Part 325 establishes the regulatory continuity that makes the official inspection legend meaningful beyond the slaughter floor. The largest practical compliance risk for processors and distributors is vehicle sanitation (§ 325.1) — FSIS has the authority to reject product loaded into an unsanitary truck and to report carrier violations to FMCSA; shared carrier violations can affect an establishment's ability to move product. For large integrated companies that operate their own trucking fleets, Part 325 sanitation requirements are incorporated into their HACCP sanitation standard operating procedures; for companies using third-party carriers, the company bears responsibility for the condition of the conveyance at time of loading. Last major amendment: the part has been stable since the HACCP-era realignment; 70 FR 9443 (February 2005) — conforming amendments.

• 9 CFR Part 329 — Detention; Seizure and Condemnation; Criminal Offenses: the FSIS enforcement regulations implementing the Federal Meat Inspection Act's authority to temporarily stop adulterated or misbranded product and livestock from moving in commerce, and to pursue judicial condemnation of products that cannot be released. Part 329 is the physical enforcement arm of the FMIA — it translates the statute's prohibition on adulterated and misbranded meat into a documented procedure that FSIS inspectors can execute in real time when they encounter a violation. The system operates in two tiers: administrative detention (immediate, temporary, inspector-level) and judicial seizure and condemnation (court-based, permanent, legally binding). Key provisions:

  • § 329.1 — Scope of administrative detention: any carcass, part of a carcass, meat food product, or dead/dying/disabled/diseased (4D) livestock may be detained for up to 20 days when an authorized FSIS representative finds reason to believe it is adulterated, misbranded, uninspected in violation of law, or distributed in violation of the FMIA; detention authority applies both in-plant and anywhere in commerce where FSIS has jurisdiction
  • § 329.2 — Physical detention method: FSIS detains product or livestock by affixing a "U.S. Detained" tag (FSIS Form 8400-2); the tag is the legally operative act — it is not a recommendation or warning, it is the detention itself; product with a detention tag cannot be moved, processed, or sold
  • § 329.3 — Notification: upon detention, FSIS must orally notify the immediate custodian and promptly serve a written Notice of Detention (FSIS Form 8080-1); if the owner or owner's agent is not present, FSIS must also notify them by delivery or certified mail to their last known address; notification must occur as soon as the detention tag is affixed
  • § 329.4 — Intergovernmental coordination: within 48 hours of detention, FSIS must give oral or written notification to any other federal, state, or local governmental authority with jurisdiction over the detained product or livestock; this ensures that a detention for suspected adulteration is not invisible to state food safety agencies or law enforcement that may have parallel authority
  • § 329.5 — Movement restrictions: detained product may not be moved from its location without FSIS authorization; limited exception for refrigeration, freezing, or storage movement approved in advance by FSIS, after which the product remains detained in its new location; upon release from detention, FSIS serves a Notice of Termination of Detention (FSIS Form 8400-1) to all previously notified parties
  • § 329.6 — Judicial seizure and condemnation: product or 4D livestock being transported in commerce or held for sale in the U.S. is subject to judicial seizure and condemnation if it is adulterated, misbranded, or otherwise violates the FMIA; judicial condemnation is the permanent, court-backed follow-through when administrative detention reveals a violation that requires destruction or disposal rather than correction and release
  • § 329.7 — Procedure: judicial condemnation is brought as a pleading in any U.S. district court with jurisdiction over where the product is found; upon condemnation, the product is disposed of — usually by destruction under FSIS supervision
  • § 329.9 — Criminal offenses: violations of the FMIA (selling uninspected product, distributing adulterated or misbranded product, forging inspection marks, interfering with FSIS inspectors) are criminal offenses; knowing and intentional violations carry felony-level exposure; this provision ties the administrative enforcement system to the full weight of federal criminal prosecution

  The administrative detention system is the critical rapid-response tool. When FSIS discovers a potential violation — a product with an uninspected mark, a lot of ground beef with elevated E. coli O157:H7, or a truckload of product with temperature abuse evidence — the detention tag stops the clock and prevents distribution while the investigation proceeds. The 20-day detention window is long enough for confirmatory testing and enforcement decisions without requiring FSIS to immediately file court papers. If the problem can be resolved (the product is legitimately inspected, the lot tests negative), FSIS releases detention. If it cannot, FSIS moves to judicial seizure. Last amended: 55 FR 47842 (November 1990) — technical amendments updating form references.

• 9 CFR Part 322 — Exports (5 sections): the FSIS export certification framework required for all inspected and passed meat and poultry products shipped to foreign countries. FSIS export certificates serve as the official government assurance that U.S. meat products comply with U.S. inspection requirements — required by most foreign importing countries as a condition of market access. Key provisions:

  • § 322.1 — Marking for export: establishment personnel must mark the outside container of any inspected and passed product destined for export when authorized by FSIS inspection personnel; the marks identify the product as U.S.-inspected and passed
  • § 322.2 — Export certification: exporters must apply for export certification for inspected and passed products shipped to any foreign country; applications may be filed online or through FSIS offices; FSIS issues official export certificates signed by authorized inspection personnel; certificate content varies by destination country's import requirements — FSIS has country-specific certificate templates aligned with bilateral equivalency agreements and foreign market access agreements
  • § 322.3 — Transfer restrictions during export: when inspected and passed products for export are transferred between containers (e.g., from tank cars to vessel tanks), the transfer must occur under FSIS inspection personnel oversight; this preserves the integrity of the export certification chain from establishment to departure
  • § 322.4 — No clearance without certificate: no vessel may receive clearance with product aboard destined for a foreign country unless the required certificates have been issued; products may not be transported from an official establishment to a port of embarkation without the required documentation
  • § 322.5 — Tallow and rendered fats: uninspected tallow, stearin, oleo oil, and other rendered fats derived from livestock carcasses may not be exported unless they are certified as meeting applicable standards — extending the certification requirement to byproducts that, while not subject to full inspection, still require official documentation for foreign market access

  Part 322 is the gateway to U.S. meat export markets. FSIS export certificates are required by the EU, Japan, South Korea, China, Mexico, Canada, and virtually every major meat-importing country. The certificate system is also the mechanism through which FSIS implements bilateral equivalency agreements — when FSIS and a foreign food safety authority have agreed on equivalent inspection standards, FSIS certificates contain the agreed attestations that satisfy the foreign country's import requirements. Loss of a foreign market's equivalency status (as occurred with some EU/U.S. hormone-treated beef disputes) blocks all certified exports regardless of individual product safety.

Pending Legislation

• HR 4700 — PRIME Act: allow state-inspected custom slaughter facilities to sell meat within the state without federal inspection. Status: Introduced.
• S 3994 — PRIME Meat Processing in Indian Country Act: extend custom slaughter provisions to Indian Country. Status: Introduced.
• HR 5341 — LOCAL Foods Act: support local food systems including small-scale meat processing. Status: Introduced.
• HR 4757 — Pigs and Public Health Act: address swine slaughter inspection standards. Status: Introduced.

Recent Developments

FSIS has modernized its inspection approach, incorporating more data-driven, risk-based inspection while maintaining the fundamental requirement of continuous in-plant presence. The New Swine Inspection System (NSIS) shifted some sorting tasks from inspectors to plant employees while maintaining FSIS oversight — a controversial change that some saw as deregulation and others as modernization. Food safety performance standards for pathogens (Salmonella, E. coli O157:H7, Listeria monocytogenes) have become increasingly stringent, with FSIS proposing to declare Salmonella an adulterant in certain poultry products. The growth of cell-cultured (lab-grown) meat has raised novel inspection questions — USDA and FDA have agreed on a shared regulatory framework for cell-cultured meat products.