APHIS Plant Export Certification — Phytosanitary Certificates for U.S. Plant and Plant Product Exports

Current Rule (2026)

Key Mechanics

A phytosanitary certificate is the passport for U.S. plant exports. When a shipment of nursery stock, seeds, grain, fruits, vegetables, or processed plant products arrives at a foreign port, the destination country's plant health authority typically demands an official government document certifying that the goods were inspected and found free of plant pests and diseases. Without it, the shipment can be refused entry, held in expensive port storage, fumigated at the importer's cost, or destroyed outright.

The legal backbone is the International Plant Protection Convention (IPPC), an intergovernmental treaty administered by the Food and Agriculture Organization of the United Nations. Under the IPPC's phytosanitary measures framework — and reinforced by the WTO's Agreement on Sanitary and Phytosanitary Measures (SPS Agreement) — each signatory nation agrees to accept phytosanitary certificates issued by the national plant protection organization of the exporting country. For the United States, that organization is APHIS Plant Protection and Quarantine (PPQ). The IPPC framework is why a certificate issued by a U.S. federal inspector in, say, Laredo, Texas carries legal weight at a port inspector's desk in Shanghai or Amsterdam.

7 CFR Part 353 is the domestic regulatory machinery that makes this work. The regulation is voluntary on its face — no U.S. statute forces you to get a certificate — but it is functionally mandatory because importing countries' own laws make the certificate a condition of market entry. APHIS inspectors examine your shipment against the phytosanitary import requirements of the specific destination country (requirements that vary widely: Japan's fruit fly protocols differ from Mexico's soil restrictions differ from the EU's wood packaging rules). If the shipment meets those standards, the inspector signs and issues the appropriate certificate form. The statutory authority for all of this flows from the Plant Protection Act (7 U.S.C. § 7701), the same law that empowers APHIS to intercept plant pests at the border. The export certification program is the mirror image of the import inspection regime: what 7 CFR Part 351 does for incoming international mail, Part 353 does for outgoing U.S. agricultural shipments.

The program issues four distinct certificate types, each serving a different export scenario:

• PPQ Form 577 (Phytosanitary Certificate) — for domestic-origin plants and unprocessed plant products exported directly from the United States
• PPQ Form 578 (Export Certificate for Processed Plant Products) — for plant products that have been processed or manufactured (e.g., kiln-dried lumber, processed seed, dehydrated plant material)
• PPQ Form 579 (Phytosanitary Certificate for Reexport) — for foreign-origin plant goods imported into the United States and then shipped onward to a third country
• Industry-issued certificates — issued by an authorized trade association under a formal written agreement with APHIS, available for specific commodity groups with established self-regulatory infrastructure

For seed crops, the program goes a step further. Many importing countries require field-level certification — an inspector visiting the growing crop before harvest to verify it is free of specific soil-borne pests or seed-transmitted diseases. APHIS (§ 353.6) allows accredited state plant regulatory officials and trained state employees to conduct these field inspections under federal supervision, which extends inspection capacity into rural growing regions that lack resident APHIS inspectors.

Private laboratories and inspection facilities can also seek APHIS accreditation (§§ 353.8–353.9) to perform certain pest-identification tests or seed health inspections. The accreditation process requires a written application, a $1,000 nonrefundable fee, submission of a quality manual, and an on-site APHIS assessment. Ongoing accreditation is subject to monitoring and can be revoked.

Key Provisions (§§ 353.1–353.9)

How It Affects You

If you're a nursery or greenhouse exporter: Your biggest risk is timing. APHIS inspectors at major agricultural export ports (Los Angeles, Miami, New York/Newark) handle high volumes and cannot always accommodate same-week requests. Schedule your phytosanitary inspection at least 1–2 weeks before your vessel loading date. If your destination requires specific pest-free declarations that need lab testing — common for Asian markets — add another 5–10 business days for test results before the inspector can sign off.

If you export grain or bulk agricultural commodities: You likely operate through a grain elevator or commodity broker that already has an established APHIS inspection relationship. But verify whether your destination country has updated its phytosanitary requirements — countries routinely revise pest lists and tolerance thresholds. China, for example, has issued new phytosanitary requirements for U.S. grains as part of trade negotiations, with little advance notice to exporters. Grain exports face a dual inspection requirement: FGIS mandatory grade-and-weight inspection under the U.S. Grain Standards Act at export elevators, and APHIS phytosanitary certification under Part 353 if the destination country requires it — both certificates must be in hand before loading.

If you're a seed company: Field-level certification is your most complex requirement. Certain markets — the EU, Japan, Korea — require field inspection of the parent seed crop before harvest to certify freedom from specific seed-transmitted diseases. Arrange inspections through your state department of agriculture or APHIS regional office at planting time, not after harvest. Missing the field inspection window means no certificate for that crop year, which can mean losing a season of export revenue. Note that phytosanitary certification under Part 353 is a separate and parallel requirement from the labeling and germination standards imposed by the Federal Seed Act — you must comply with both, and a lot that passes APHIS phytosanitary inspection may still be denied entry by a foreign buyer if it fails to meet the destination country's seed purity or variety certification requirements.

If you import and reexport plant products: You need PPQ Form 579, not PPQ Form 577. The distinction matters: PPQ 579 certifies that foreign-origin goods held in U.S. storage were not exposed to U.S. plant pests — it makes no representation about their country-of-origin pest status. Goods transiting under U.S. Customs bond without entering U.S. commerce are not eligible for any APHIS phytosanitary certificate. Coordinate with U.S. Customs and Border Protection early — CBP controls the bond status and release of the goods while APHIS controls the phytosanitary certification; the two agencies must be aligned before cargo can move.

If you're a trade association in an eligible commodity: Explore whether your sector qualifies for an industry-issued certificate. Under a formal APHIS agreement, your association can issue certificates directly for member shipments, bypassing the individual APHIS inspection queue. This is most developed in certain fresh produce and nursery sectors with strong self-regulatory track records.

The cost exposure: Unlike many regulatory compliance costs, the primary cost of failing phytosanitary certification isn't a fine — it's cargo loss. A rejected shipment at a foreign port can mean fumigation costs ($500–$5,000 for a container), extended port detention ($150–$300/day in major Asian ports), or full destruction of perishable goods with no recovery. Phytosanitary certificates cost relatively little (APHIS fees for inspection services are set at cost recovery levels, typically $35–$85/hour for inspector time) compared to the risk they mitigate.

Legal Authority

The export certification program derives from two statutory pillars, supported by a broader Plant Protection Act framework:

• 7 U.S.C. § 7701 (Plant Protection Act of 2000, Findings) — establishes congressional findings that stopping the spread of plant pests is essential to protect U.S. farms, the environment, and the economy; directs the Secretary to facilitate exports and imports while minimizing pest spread; treats all regulated plant pests, noxious weeds, plants, and plant products as matters of interstate or foreign commerce.
• 7 U.S.C. § 7702 (Plant Protection Act, Definitions) — defines "plant," "plant product," "plant pest," "phytosanitary certificate," "export," "import," and "systems approach" for purposes of the entire plant protection framework.
• 7 U.S.C. § 7712 (Regulation of movement of plants and plant products) — authorizes the Secretary to regulate export of plants and plant products; permits requirement of official inspection certificates from origin; mandates that all regulations be based on sound science.
• 7 U.S.C. § 7751 (Cooperation) — authorizes the Secretary to negotiate directly with foreign plant health officials, provide technical assistance to requesting countries, and maintain plant health experts in other countries to facilitate export market access.
• 7 U.S.C. § 7753 (Reimbursable agreements) — authorizes preclearance of plants and plant products at locations outside the United States before entry, with fees collected going into dedicated accounts; also authorizes overtime and holiday pay for inspectors tied to import/export services, recoverable from service recipients.
• 7 U.S.C. § 7759 (Fees for inspection of plants for exporting or transiting) — directly authorizes the Secretary to set and collect fees for inspecting plants and plant products being exported or transiting the United States, and for certifying compliance with foreign countries' pest requirements; late payments accrue interest under 31 U.S.C. § 3717; the Secretary may place a lien on plants for unpaid fees and, after notice, sell or dispose of liened goods.
• 7 U.S.C. § 7734 (Penalties) — establishes civil penalties up to $50,000 per individual or $250,000 per entity per violation for violating plant protection regulations, including forging or misusing phytosanitary certificates; criminal penalties up to 5 years for knowing violations.
• 21 U.S.C. § 136 (Animal Industry Act) — provides supplemental USDA authority for inspection and certification services for agricultural commodities, including plant products.

The international framework rests on the International Plant Protection Convention (IPPC), to which the United States is a party, and the WTO Agreement on Sanitary and Phytosanitary Measures, which governs how signatory nations may use plant health requirements in international trade without creating disguised trade barriers.

Recent Rulemakings

• 72 FR 35917 (June 27, 2007) — Major update to Part 353: reflected APHIS organizational restructuring, added explicit authority for electronic application submission (PPQ Form 572 via e-Government systems), and clarified accreditation procedures for non-government inspection facilities and seed health testing labs
• 1999 amendment — Updated certificate form numbers and revised regional office structure to reflect APHIS reorganization in the late 1990s
• 1996 amendment — Aligned certificate formats with revised IPPC model certificate standards adopted by FAO member nations

Recent Developments

• 2025 trade disruptions: Escalating U.S.-China tariff actions in 2025 did not directly restrict phytosanitary certification, but Chinese plant health authorities increased the frequency of port inspections for U.S. agricultural exports, resulting in higher rejection rates for grain and soybean shipments citing technical phytosanitary grounds. APHIS and USDA's Foreign Agricultural Service (FAS) have been engaged in bilateral discussions.
• Electronic certification expansion: APHIS has been expanding use of ePhyto — the international electronic phytosanitary certificate system coordinated through the IPPC — which allows certificates to be transmitted digitally directly to destination country plant protection authorities, reducing fraud risk and paper delays. U.S. exporters to countries that accept ePhyto no longer need to present a paper certificate at the foreign port.
• IPPC Standard updates: The IPPC adopted updated International Standards for Phytosanitary Measures (ISPMs) in 2023–2024 covering wood packaging material treatment requirements (ISPM 15) and e-commerce plant shipments. U.S. exporters of wood pallets, crates, and dunnage must ensure their packaging meets updated treatment and marking requirements or risk cargo rejection at destination.

Pending Action

The following recent Federal Register actions from APHIS affect the phytosanitary certification landscape or directly related plant protection programs:

• 91 FR 20971 (April 20, 2026) — APHIS seeking extension of Paperwork Reduction Act approval for information collection associated with "special need requests" — the process by which individual states can petition for additional phytosanitary restrictions beyond federal baseline requirements under the Plant Protection Act. Comment deadline: June 22, 2026. (Federal Register)

• 2025-18744 (September 26, 2025) — APHIS extending PRA approval for information collection associated with phytosanitary treatment regulations governing approval of cold treatment and irradiation facilities in Southern and Western states. These treatment protocols are often required as conditions of phytosanitary certification for fresh fruit exports to certain markets. (Federal Register)

• 2025-14091 (July 25, 2025) — APHIS removed requirement that fruit imported from New Zealand be accompanied by a phytosanitary certificate with an additional declaration certifying freedom from Light Brown Apple Moth (LBAM). This deregulation decision — based on a commodity import evaluation — illustrates how APHIS regularly revises specific pest-declaration requirements on a bilateral basis, affecting what additional declarations exporters to other markets may face in reciprocal reviews. (Federal Register)

• 2025-13763 (July 22, 2025) — APHIS authorized importation of Phalaenopsis spp. orchid plants for planting in approved growing media from Germany and the Netherlands, subject to bilateral workplan and Plants for Planting Manual requirements. Illustrates how new bilateral market-access agreements alter the phytosanitary certification conditions that must accompany shipments. (Federal Register)

Related Topics

• Plant Protection Act — APHIS & Federal Quarantine — the statutory parent of this program; covers the full PPQ import and domestic pest-control framework
• APHIS Plant Mail Import Inspection (7 CFR Part 351) — the import side of the same PPQ system; what happens when foreign plant goods arrive via mail
• Federal Seed Act — Seed Labeling & Import Controls — parallel seed quality requirements for exported seed that complement phytosanitary certification
• U.S. Grain Standards Act — Federal Grain Inspection — mandatory FGIS grade-and-weight inspection for export grain; runs alongside phytosanitary certification
• U.S. Customs and Border Protection — coordinates with APHIS at ports of export; controls bond status for reexport transactions
• Animal Health Protection Act — APHIS Disease Control — parallel APHIS program for animal health export and import certification
• AMS Specialty Crop Import Standards (7 CFR Part 999) — import inspection requirements for specialty crops; the inbound analog for certain produce categories
• Federal Export Promotion Programs — USDA and Commerce programs that help agricultural exporters access foreign markets