Greenhouse-Grown Plant Certification Program Questions and Answers

Last Modified: April 25, 2024

Find answers to common questions related to the U.S.-Canada Greenhouse-Grown Plant Certification Program (GCP).

About the Program

The GCP authorizes facilities that meet specific compliance elements to use an Export Certification Label for the export of plants to Canada or the United States. Authorized GCP facilities can use the Export Certification Label in lieu of a phytosanitary certificate, providing two significant benefits:

  1. Cost savings—authorized GCP facilities do not use phytosanitary certificates to ship certified plants.
  2. Increased flexibility—authorized GCP facilities can make last-minute changes to an order without needing to get a phytosanitary certificate reissued.

 

The GCP working group received feedback that it was unclear from the program’s name whether certification applied to plants or to greenhouses. That’s why the original name was changed in 2016, making it clear that the GCP program certification applied to plants. The program continues to use the GCP acronym because it is known and recognized by facilities and the plant industry.

Yes. The GCP is a voluntary alternative for export certification of eligible greenhouse-grown plants traded between the United States and Canada.

Requirements

If a GCP facility produces plants that are not eligible for export with an Export Certification Label, then a phytosanitary certificate must be requested. Plants that meet the import requirements of the destination country may be inspected and issued a phytosanitary certificate by the appropriate government agency. Facilities that do not participate in the GCP may export plants and must request a phytosanitary certificate.

When plants in soil are shipped between Canada and the United States, specific phytosanitary measures are required to address the risks associated with soil-borne pests. To address the risks associated with soil-borne pests, the GCP requires that growing media must not contain soil.

Plants that meet the import requirements of the United States and Canada are eligible to be produced and shipped under the GCP. The GCP requires the facility to indicate the types of plants they are growing and where they come from. This list of plants will be reviewed by the GCP auditor to verify that all the plants are eligible for the program. Some plants are excluded from the GCP and include plants that are prohibited entry into the United States or Canada, regulated invasive plants, noxious weeds, as well as true seeds, grains, and potatoes.

 

The GCP is for plants that are greenhouse-propagated and -grown. In addition, plants must be eligible to enter both Canada and the United States. Plants that cannot be exported using a phytosanitary certificate cannot be exported using an Export Certification Label.

 

When plants are shipped between participating GCP facilities in the same country, an Interfacility Stamp may be used to demonstrate that the plants in the consignment are certified and ready for export. If the plants are shipped to a facility that is not registered in the GCP, the plants lose their certified status.

The GCP is designed for plants which are propagated and grown in a greenhouse. There are limited exceptions; for example, there are provisions to allow greenhouse-grown plants to be hardened off in order to acclimatize to outdoor conditions before sale. Any other facility production practices involving outdoor growth must be preapproved by the Canadian Food Inspection Agency (CFIA) or APHIS.

The GCP does not establish traceability requirements; instead, it provides a common language for all facilities and auditors so there is a consistent approach to traceability. GCP facilities must have a system in place that allows eligible plants to be tracked from the time they enter the facility to the time they are shipped. There must be sufficient information available to substantiate eligibility and ensure that only eligible plants are certified under the GCP.

The audit process is based on the compliance agreement between the facility and the national plant protection organization (NPPO)—either CFIA or APHIS. Audits are conducted up to four times per year and will include at least one complete systems audit. Auditors assess the practices of the greenhouse against the compliance agreement, as well as verify that plants are free from regulated pests and practically free from other injurious pests. The compliance agreements contain the same technical elements for facilities in Canada and the United States, which improves consistency and equivalence between greenhouses.

The GCP does not establish training requirements; instead, it provides a common language for all facilities and auditors so there is a consistent approach to staff training. Staff must have the knowledge, skills, and ability to ensure that GCP requirements are met.

Each NPPO is responsible for authorizing, auditing, suspending and removing facilities from the GCP in their country, including any procedures for conflict resolution. APHIS and CFIA regularly evaluate the GCP, including noncompliance information, to improve the program.

The GCP Pest Management Plan

Yes. In small operations it is typical for one person to serve in both capacities. 

This depends on situation. Contact your Federal or State regulatory official for guidance.

The GCP manager is responsible for the overall functions of the program at their facility. The GCP’s Technical Requirements list the manager’s responsibilities on pages 26 and 33. 

You can review the GCP Audit Checklist in the Technical Requirements to see what an audit includes and the required records and documents.

USDA does not charge an audit fee. Contact your State agriculture official for information about their audit service. 

Conforming plants meet the requirements of the GCP and cannot be a NAPPRA (plant that is not eligible to ship) plant for the United States or Canada.

Yes. You can reference the Technical Requirements section 2.2.1.1, “Protection from Soil- borne Pests” (page 30) for information about growing media contaminants.

There are no uniform pest modules currently. We advise using the spotted lanternfly pest module as a model.  

After a GCP facility has successfully completed 1 year of audits (four audits: three for surveillance and one for systems) under conditional status and without any noncompliances, the facility may request a status change from their Federal or State contact.

Other Information

No, they are not equivalent. SANC is a domestic certification program. GCP is a bilateral certification program supporting exports to Canada. 

A GPC facility could resume shipping plants only after agriculture officials determine the facility meets the program’s specific compliance elements. That determination is made on a case-by-case basis.
To learn more about this disease, visit Phytophthora Ramorum.
 

ACOs review and provide pest management plan guidance to a facility as well as facilitate program audits.

Contact Us

If you’re interested in becoming a GCP-approved facility, contact your State plant regulatory official, State ACO, or Federal ACO. State and Federal officials should communicate regularly to support a seamless process.

For further questions about the GCP, email us at ppqexportservices@usda.gov.