Phytosanitary Certificate: What It Attests

Short answer: A phytosanitary certificate is an official document issued by a country’s national plant protection organization (NPPO) to attest that a consignment of plants, plant products or other regulated articles meets the importing country’s phytosanitary import requirements. Under ISPM 12 it may be signed only by a public officer who is technically qualified and authorized by the NPPO.

Definition and scope

ISPM 12 (Phytosanitary certificates), a standard of the International Plant Protection Convention (IPPC), sets the requirements and guidelines for preparing and issuing phytosanitary certificates for export and for re-export. It states that phytosanitary certification attests that consignments meet phytosanitary import requirements and is undertaken by an NPPO. The standard was first adopted in 2001, revised in 2011, supplemented in 2014 with an appendix on electronic certificates, and given a focused revision on re-export certificates at the sixteenth session of the Commission on Phytosanitary Measures (CPM-16) in 2022. A further revision (topic 2023-020) is listed by the IPPC as a draft ISPM under development, so the 2022 text is the one described here.

The certificate should be issued only for its stated purpose: attesting that plants, plant products or other regulated articles meet an importing country’s requirements (and, where relevant, supporting re-export). “Public” in this context means the officer is employed by a level of government, not by a private company. The requirements for the NPPO’s certification system as a whole sit in a separate standard, ISPM 7.

How it is used in practice

Who issues it. Only a public officer who is technically qualified and duly authorized by the NPPO. A broker, courier or exporter cannot issue or sign one.
What the importing country sets. The importing country’s NPPO defines the requirements; the certificate attests they are met. The IPPC says parties must not require certificates inconsistent with the model certificates, and that any additional declarations must be limited to those that are technically justified.
Identification. Each certificate should carry a unique identification number, which supports trace-back of consignments, audits and record-keeping.
Travel with the consignment. The certificate should accompany the consignment, or be transmitted separately if the importing NPPO accepts that, and must be available to the importing NPPO on arrival. Electronic certificates may be issued where the importing NPPO accepts them; ISPM 12 Appendix 1 covers standard XML schemas and exchange mechanisms.
Validity. The exporting or re-exporting NPPO may restrict how long a certificate stays valid between issuance and export, taking into account packaging, storage environment, commodity, conveyance, time of year and pests.
US exporters. USDA APHIS describes its Phytosanitary Certificate Issuance and Tracking system (PCIT) as certifying compliance with the plant health standards of importing countries and tracking the inspection of agricultural commodities. APHIS advises checking with local phytosanitary authorities before submitting applications through PCIT, and not all locations use it.

Anatomy of the model certificate

The IPPC model certificate for export (ISPM 12, Annex 1) fixes the layout that NPPOs are expected to use. The table below follows the headings printed on that model.

Part of the model	What it records
Number; “Plant Protection Organization of”; “TO: Plant Protection Organization(s) of”	The unique certificate number, the issuing country’s NPPO, and the importing country’s NPPO. A transit country with its own certificate requirements is listed as well, marked as transit.
I. Description of Consignment	Exporter name and address; declared consignee name and address; number and description of packages; distinguishing marks; place of origin; declared means of conveyance; declared point of entry; name of produce and quantity declared; botanical name of plants.
Certifying statement	That the articles have been inspected and/or tested by appropriate official procedures, are considered free from the quarantine pests specified by the importing country, and conform to its current phytosanitary requirements. An optional line states they are deemed practically free from other pests.
II. Additional Declaration	Text required by the importing country, limited to what is technically justified.
III. Disinfestation and/or Disinfection Treatment	Treatment date, treatment, active ingredient, duration and temperature, concentration and additional information, where a treatment applies.
Stamp, place of issue, authorized officer, date, signature	The issuing NPPO’s authentication. An optional clause disclaims financial liability of the NPPO and its officers.

The country of origin must always be stated under “Place of origin”; a pest free area, place or site may also be required. The consignee may be given as “To order” only if the importing NPPO permits it. CITES certificates may accompany a consignment but are not attachments to the phytosanitary certificate and are not referenced on it. Any attached pages must bear the certificate number and be dated, signed and stamped.

Types: export certificate and re-export certificate

Feature	Phytosanitary certificate (export, Annex 1)	Certificate for re-export (Annex 2)
Usually issued by	The NPPO of the country where the commodity was grown or processed	The NPPO of the re-exporting country
Condition	Consignment meets the importing country’s requirements	The commodity was not grown or processed there to change its nature, the original certificate or a certified copy is available, and the consignment has not been exposed to infestation or contamination risk
Link to an earlier document	None required	Refers back to the original certificate or certified copy

Where it matters for labs and research programs

Laboratories, genebanks and breeding programs that send seed, cuttings, tissue cultures or other plant material across borders meet the phytosanitary certificate as one gate among several. The certificate answers the plant-health question only. Access and benefit-sharing terms, material transfer agreements and biosafety rules are separate obligations; see plant genetic resources: access, SMTAs and data and genebank operations, standards and access for how those sit alongside plant-health clearance. Because the importing NPPO sets the requirements, the first question for a shipper is what the destination country requires and which authority in the exporting country issues the certificate.

Replacement, alteration and invalid certificates

Replacement is for exceptional circumstances only: damage, a change of addresses, destination or entry points, or missing or incorrect information. The issuing NPPO replaces it, original returned and cancelled, with a new number that never reuses the old one. If the original cannot be returned, the new certificate carries the additional declaration “This certificate replaces and cancels phytosanitary certificate no. [number] issued on [date]”.
Alterations to an issued certificate should be avoided.
Invalid certificates. ISPM 12 says importing NPPOs should not accept invalid or fraudulent certificates and should notify the issuing NPPO (see ISPM 13). Its examples of invalid certificates include those that are incomplete or incorrect, false or misleading, internally conflicting, worded inconsistently with the model, completed with information added by unauthorized persons, altered without stamp, date or countersignature, past their validity period (except when used as a certified copy for re-export), or illegible.

Common misunderstandings

“A private inspector or broker can issue it.” No. Issuance is by a public officer authorized by the NPPO.
“It is an import permit.” No. It attests that requirements set by the importing country are met; it does not set them.
“Corrections can be written on the original.” Unauthorized alterations make a certificate invalid; replacement is by the issuing NPPO with a new number.
“A re-export certificate can be issued for anything passing through.” It applies only under the conditions above, including availability of the original certificate or a certified copy.

FAQ

What is a phytosanitary certificate?

An official NPPO-issued document attesting that a consignment of plants, plant products or other regulated articles meets the importing country’s phytosanitary import requirements (ISPM 12).

Who issues a phytosanitary certificate?

A public officer who is technically qualified and duly authorized by the NPPO of the exporting country, or of the re-exporting country for a re-export certificate.

Can a phytosanitary certificate be electronic?

Yes, where the importing NPPO accepts it. ISPM 12 Appendix 1 (2014) covers standard XML schemas and exchange mechanisms for electronic certificates.

How long is a phytosanitary certificate valid?

ISPM 12 leaves this to the exporting or re-exporting NPPO, which may restrict validity after issuance and before export, considering factors such as packaging, storage, commodity, conveyance, season and pests.

Where is the application made in the United States?

APHIS describes PCIT as its system for certifying compliance with importing countries’ plant health standards, and advises checking with local phytosanitary authorities before applying through it, since not all locations use it.