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Offshore Greenhouse Certification Program, Frequently Asked Questions

This web page provides guidance and general information regarding the implementation of APHIS PPQ’s Offshore Greenhouse Certification Program (OGCP).


What is the Offshore Greenhouse Certification Program (OGCP)?
OGCP is an APHIS PPQ certification program for offshore facilities that produce eligible generally admissible unrooted plant cuttings under a systems approach to reduce the risk of pests and diseases from entering the United States. Facilities that participate in the program may benefit from a reduced inspection frequency at the U.S. plant inspection stations for shipments that meet the eligibility criteria. OGCP is a voluntary program.

Who can participate?
Any offshore producer that meets the program’s requirements.

What are the program’s eligibility criteria?

What are the benefits of participating in the OGCP?
Eligible consignments will benefit from a reduced frequency of inspection at the U.S. port of entry.

What is the process of joining the program?

  • Interested offshore producers must send an official request to APHIS through the National Plant Protection Organization (NPPO) expressing their interest in participating in the OGCP.
  • Establish a Cooperative Service Agreement between APHIS and the offshore facility.
  • Establish a trust fund agreement to transfer funds to APHIS for the annual certification audits.

Where can I find additional information?
Please visit the OGCP website for the program’s framework and list of eligible plant taxa.

For additional questions or information, please send an email to

Participating offshore producers:

When is the annual facility certification audit?
Facility certification takes place during the peak plant production and harvesting period.

What is going to be evaluated during the annual full system audit?
The lead auditor will evaluate the facility against the OGCP framework and checklist.

Who performs the annual facility certification audit?
A certified APHIS auditor in collaboration with a NPPO representative and, if available, a local APHIS staff. In some circumstances, two or more certified auditors might be needed.

What is included in the cost of the certification audit/site visit?
The cost of the certification audit includes the salary, benefits, overtime (if applicable), travel, accommodations and overhead for the lead auditor(s). If several facilities will be audited in one trip, the travel costs can be divided among all the facilities.

Are there any application fees?
No, there are no application fees to participate in the program.

Do importers need to register?
No, importers do not need to register.

How long is the certification valid for?
The certification is valid for one year. To maintain certification, a full system audit is required every year.

How long is the certification process?
It can take up to 6 months from the planning phase to certification. APHIS will notify the facility and will send an official letter to the NPPO once the facility is approved and certified.

Can I commingle OGCP eligible and non-eligible plant taxa in the same consignment?
No, to benefit from the program only OGCP-eligible plant taxa must be in the consignment.

Can I commingle plants from different certified facilities in the same consignment?
No, to benefit from the program the consignment must be comprised of plants from one certified facility.

Can I commingle different propagative materials (e.g. rooted and unrooted cuttings) in the same consignment?
No, to benefit from the program the consignment must have only unrooted cuttings.

What if I need/decide to commingle?
Every commercial consignment with commingled plant taxa, facilities, propagative materials etc., will be inspected at full rate at the port of entry.

What happens if the facility is not in compliance with the OGCP framework?
The facility will not be eligible to participate in the program until it is in compliance with the OGCP framework.

What happens if a quarantine pest is found in an OGCP consignment?

  • Plant Inspection Station (PIS) will issue an Emergency Action Notification (EAN)
  • Shipment will be destroyed, re‐exported or treated
  • Facility will revert to 100% frequency of inspection for next 5 shipments. If another pest is found, facility will be removed from program until issue is resolved. If not, it will revert to reduced inspection.
  • Preclearance and Offshore Programs (POP) will receive an alert and will communicate with NPPO and facility to resolve issue and agree on mitigation actions. If APHIS, NPPO and facility resolve the issue before the fifth shipment, APHIS may revert to reduced frequency of inspection.

What is the process to add additional plant taxa to the OGCP plant taxa list?
Offshore facility sends a list of the new plant taxa to the OGCP program manager ( The program manager will submit a request to PPQ’s risk managers for review. If approved, the new plant taxa will be added to the OGCP
plant taxa list after notifying the offshore facility.

Is there an OGCP-specific language in the phytosanitary certificate?
The NPPO must include the below additional declaration in the phytosanitary certificate indicating that the consignment is eligible for the OGCP and include the certified facility number.

“All plant taxa in this consignment were produced and prepared for export from [approved facility number] in accordance with the Offshore Greenhouse Certification Program.”


How can I identify when a consignment is eligible for the OGCP?
The NPPO must add language in the phytosanitary certificate (under additional declaration) acknowledging that the consignment is OGCP-eligible. This language must also include the certified facility number. Brokers can use this language to identify an OGCP consignment.

What information is required in the APHIS Core message set for the OGCP?

  • Certified facility number
  • List of OGCP-eligible plant taxa
  • Producer Name
  • Use the grower code “AG1”

Where can I confirm the spelling and taxonomic name of a plant taxa?
Please use the ARM System Propagative Name Validation List and the OGCP-eligible plant taxa list to verify plant taxonomic names.

ARM will recognize spp. or sp. Either option is correct.

What is the grower code for OGCP consignments?
Use “AG1” the grower code when all the plant taxa in the consignment are eligible for the OGCP.

What is the grower code for a consignment not eligible for the OGCP (e.g. commingled with not eligible plant taxa)?
Use “DFI” as the grower code when a consignment is not eligible for the OGCP.

Who should I contact for questions about the APHIS Automated Commercial Environment (ACE)?
Please Contact:

Where can I find more information about the APHIS Core message set?

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