Summary of MPI’s decision:

Introduce an additional fumigation option for logs exported to China: single-dose application of 3.5 g/m³ phosphine in ship holds for 240 hours (10 days). This applies to both solid aluminium phosphide and cylinderised phosphine gas.

* Define a successful phosphine fumigation as achieving a concentration–time product (CT)of 50 000 ppm·h, replacing the previous requirement to maintain a concentration of 200 ppm.

* Permit an option to reduce the grain capacity of the ship’s hold by up to 30% to support operational application.

* MPI will review the performance of the phosphine pathway within 12 months of implementation, engaging with a representative group of industry stakeholders, including exporters and treatment providers.

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For further information please read the following documents:

* Final Draft – Phytosanitary Official Assurance Programme for log exports (Logs OAP)

* Final Draft – China forestry importing country phytosanitary requirements (ICPR)

Changes made, compared to the currently published MPI documents

The China forestry ICPR (final draft available for download below) has the following changes:

* Added requirement under ‘General’ for log export consignments to comply with Logs OAP.

* Removed requirement to maintain concentration 200 ppm of phosphine gas.

* Removed reference to a top-up during fumigation period.

* Removed information under ‘Insecticide Treatments’ about alternative treatment and additional declaration.

* Removed the Quarantine pest list and link to pest list in Appendix 1 of China plants ICPR.

* The existing China forestry ICPR (Last update 4 October 2023) may be found here on the MPI website.

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The LogsOAP (final draft available for download below) has the changes outlined under ‘Document History’

* The existing Logs OAP version 1.5, 31 October 2024 may be found here on the MPI website, until it is updated on Monday 18 August 2025.

Next Steps:

* MPI plans to publish the final versions of the Logs OAP and China forestry ICPR to the MPI website on Monday 18 August 2025.

* MPI will review the performance of the phosphine pathway within 12 months of implementation.