FSIS Transportation of Fish Products — Federal Rules for Shipping Inspected Fish in Interstate Commerce
Legal Authority
- 21 U.S.C. §§ 601–602 — Federal Meat Inspection Act (as expanded by the 2008 Farm Bill to include catfish): extends mandatory federal inspection and transportation rules to catfish and catfish food products; FSIS has authority over the transportation, storage, and handling of inspected fish products to prevent adulteration or misbranding
- 9 CFR Part 555 — FSIS regulations governing transportation of inspected fish products: requires that catfish and other inspected fish products shipped in commerce be kept under conditions that maintain their safety and wholesomeness; prohibits transportation under conditions that may cause adulteration
Key Mechanics
The 2008 Farm Bill transferred catfish inspection authority from FDA to FSIS, making catfish subject to the Federal Meat Inspection Act framework alongside cattle, swine, and poultry. 9 CFR Part 555 governs the transportation of FSIS-inspected fish products (catfish and catfish food products) in commerce. The rule requires that inspected fish products be transported under refrigerated or frozen conditions as appropriate to maintain wholesomeness; that containers be properly sealed and marked with the FSIS mark of inspection; and that carriers not co-mingle inspected fish products with uninspected, adulterated, or misbranded products in a way that could contaminate the inspected product. FSIS inspectors may detain and examine fish product shipments that appear to be transported under adulteration-risk conditions. The rule is enforced through FSIS field inspection activities and coordination with state departments of agriculture for in-commerce surveillance.
Current Rule (2026)
| Parameter | Value |
|---|---|
| Citation | 9 CFR Part 555 |
| Issuing agency | USDA Food Safety and Inspection Service (FSIS) |
| Statutory authority | 21 U.S.C. § 602; 21 U.S.C. § 601 (Federal Meat Inspection Act); 7 U.S.C. § 450 |
| Last major amendment | No recent Federal Register amendments |
What This Rule Does
FSIS inspects fish and fish products at official establishments — and that inspection mark must stay valid through the entire commercial chain from processor to consumer. Nine CFR Part 555 establishes the transportation rules that protect inspection integrity for fish products moving in interstate commerce.
The Part applies the same approach used for meat and meat food products (9 CFR Part 325) to fish — requiring that fish products moving in commerce bear official inspection marks, be properly sealed and packaged to prevent contamination in transit, and be transported under conditions that prevent adulteration. The rule also establishes strict requirements for the handling of dead, dying, and diseased fish to ensure they do not enter the human food supply.
Note: Part 555 applies to fish and fish products regulated by FSIS under the Federal Meat Inspection Act's fish provisions. It operates alongside FDA jurisdiction over most seafood, which is governed by the seafood HACCP regulations (21 CFR Part 123). FSIS jurisdiction over fish applies to siluriformes (catfish, swai, basa) and other fish specifically regulated by USDA.
Key Provisions
- § 555.1 — Basic transportation rule: no person may sell, transport, offer for sale, or receive fish products in commerce if the product is adulterated, misbranded, or lacks an official inspection legend; fish products not already wrapped, packaged, or enclosed must be transported in completely enclosed conveyances (trucks, railcars, or other means with tight-fitting doors or covers for all openings) to prevent adulteration by airborne contaminants; conveyances must be reasonably free of contamination
- § 555.2 — Export movement: fish products offered to a carrier for transport within the United States as part of an export movement require the same certificate as domestic shipments
- § 555.3 — Unmarked inspected fish between official establishments: transport of inspected-but-unmarked fish product between two official establishments for further processing follows the same rules as unmarked inspected meat (9 CFR 325.5)
- § 555.4 — Handling of potentially adulterated fish: the meat-product rules on handling product that may have become adulterated or misbranded (9 CFR 325.10) apply equally to fish and fish products
- § 555.5 — Inedible fish transport: inedible fish parts or products must be transported following the same rules as inedible livestock products (9 CFR 325.11(e))
- § 555.6 — Certificates: carriers must file original certificates for unmarked inspected fish products delivered to them, using the same procedures as for unmarked inspected meat (9 CFR 325.14)
- § 555.7 — Official seals: required seals for fish transport are those prescribed in 9 CFR 541.3 and 312.5
- § 555.8 — Loading/unloading sealed conveyances: unloading fish from sealed railroad cars or trucks containing unmarked product follows the rules for meat (9 CFR 325.17)
- § 555.9 — Diverting shipments: inspected and passed fish bearing the inspection legend may be redirected from the original destination without reinspection, if accompanying shipping documents are properly marked; in emergencies (wreck, disaster), seals may be broken and the carrier must immediately report to the FSIS District Manager, including the nature of the emergency, seal-breaking location, origin and destination, vehicle numbers, and the disposition of the product
- § 555.10 — Exemptions: Part 555 does not apply to laboratory specimens sent to or by USDA; materials for educational, research, or non-food purposes; pharmaceutical or organotherapeutic tissues not used as human food; materials for laboratory research authorized by the Administrator; or naturally inedible articles
- § 555.11 — Dead, dying, or diseased fish: persons buying, selling, or transporting dead, dying, or diseased fish that did not die by slaughter must consign those fish to a registered animal food manufacturer, renderer, or collection station, or to an official establishment or state-inspected establishment approved as having equivalent standards; they may not sell or otherwise transfer these fish into channels where they could reach human food markets; importers of such fish are subject to the same restrictions
- § 555.12 — Conveyances for diseased fish: all vehicles used to transport dead, dying, or diseased fish must be leak-proof, cleanable, and sanitizable; before being reused for human food products, such conveyances must be completely cleaned and disinfected, including removal of all fluids and product remnants and thorough application of an FSIS-approved disinfectant to all cargo space surfaces
How It Affects You
Fish processors and distributors under FSIS jurisdiction (primarily catfish/siluriformes processors under USDA's 2016 mandatory inspection rule) must ensure that their interstate shipments bear official inspection marks and are transported in properly enclosed conveyances. Unmarked inspected product moving between official establishments requires proper certification.
Transportation companies carrying FSIS-regulated fish products must maintain conveyances in sanitary condition, respect official seals, and follow proper procedures if seals must be broken in emergencies. Emergency seal-breaking without immediate notification to the FSIS District Manager violates Part 555.
Buyers of fish at auction, wholesale, or from distributors should verify that products bear official inspection marks. Receiving adulterated or misbranded fish products in commerce is itself a violation regardless of where in the chain the problem originated.
Persons dealing in dead, dying, or diseased fish — including fish that die in transport — must consign those fish to registered inedible disposal channels (renderers, collection stations, or animal food manufacturers). Allowing dead fish to enter human food commerce, even inadvertently, creates significant liability under the Federal Meat Inspection Act and FSIS regulations.
Exporters moving FSIS-regulated fish out of the United States must obtain the same certificates required for domestic commerce for any domestic leg of the transport.
Statutory Authority
This rule implements:
- 21 U.S.C. § 601 — Federal Meat Inspection Act; provides the core authority under which FSIS regulates the slaughter and processing of animals (including fish under FSIS jurisdiction) for human food and establishes the interstate commerce transportation rules
- 21 U.S.C. § 602 — Declarations of policy under the Federal Meat Inspection Act; establishes the public health rationale for ensuring that all meat and meat-adjacent products moving in commerce are properly inspected
- 7 U.S.C. § 450 — Agricultural commodities; supplemental authority for USDA regulation of commerce in agricultural products
Recent Rulemakings
No major Federal Register amendments. The fish product transportation rules mirror the longstanding meat transportation framework, extended to cover FSIS-regulated fish after USDA assumed mandatory catfish inspection authority in 2016.