Consignments are to be fumigated with:
Methyl bromide at Normal Atmospheric Pressure: Methyl bromide fumigation to be maintained for 24 hours and exceed minimum concentrations at 0.5, 2 and 12 hours, for the corresponding dosage and temperature range, as per table below.
| Temperature, ⁰C | Dosage, g/m3 | Minimum concentrations during the exposure period | | |
| | | 0.5 hours | 2.0 hours | 12.0 hours |
| 32 or above | 40 | 30 | 20 | 15 |
| 27 - 31 | 56 | 42 | 30 | 20 |
| 21 - 26 | 72 | 54 | 40 | 25 |
| 16 - 20 | 96 | 72 | 50 | 30 |
| 10 - 15 | 120 | 90 | 60 | 35 |
| 4 - 9 | 144 | 108 | 70 | 40 |
OR
Methyl bromide at 660 mm Vacuum:
| Temperature, ⁰C | Dosage, g/m3 | Exposure period, hours |
| 16 or above | 128 | 3 |
| 4 - 15 | 144 | 3 |
OR
Aluminium Phosphide at:
| Temperature, ⁰C | Dosage, g/m3 | Exposure period, days | |
| | | Tablets | Sleeves |
| <5 | 1.0 to 3.0 | No fumigation | No fumigation |
| 5 - 12 | 1.0 to 3.0 | 10 | 8 |
| 12 - 15 | 1.0 to 3.0 | 5 | 4 |
| 16 - 20 | 1.0 to 3.0 | 4 | 3 |
| > 20 | 1.0 to 3.0 | 3 | 2
|
In-transit fumigation:
In-transit phosphine fumigation details may be endorsed on the phytosanitary certificate in the treatment section as follows:
The phosphine fumigation of [commodity] onboard [enter vessel name] was conducted in-transit by a licensed fumigator at (g/m3) for (days) at (℃).
The exporter is to provide evidence attesting to the treatment and present it to the department at time of authorisation.
Details of treatment to be endorsed on the phytosanitary certificate in the treatment section.
For treatment, which is not undertaken onshore, prior to departure, the licensed fumigator/exporter is to provide the Grain and Seed Export Program
Grain.Export@agriculture.gov.au with:
- Permit issued by the APVMA allowing use of fumigant in-transit
- Fumigation plan including re-circulation method and monitoring lines and their locations
- Method of sealing holds during fumigation
- Method of clearing the fumigant from the consignment
- Method used to provide gas free certification
A treatment certificate from the licensed fumigator must be presented prior to the issuance of any government certificates and must contain:
- Dosage (grm/m3), temperature (℃), and duration of treatment (days) in accordance with NPPO import conditions
- Vessel name, destination and holds loaded
- Commodity and quantity
- Signed by a licensed fumigator with contact details provided
Note:
- In-transit phosphine fumigation may only be undertaken when approved by the destination country.
- If treatment is to be undertaken in-transit, consignment must be found free of live insects during phytosanitary inspection.
- Fumigator must submit the Fumigation Plan to the Grain and Seed Exports Program (Grain.Export@agriculture.gov.au) for approval before undertaking in-transit phosphine fumigation to meet importing country's quarantine requirement.
The exporter is to provide evidence attesting to the treatment and present it to the department at time of authorisation.
Details of treatment to be endorsed on the phytosanitary certificate in the treatment section.
Note:
- Treatment details are to be endorsed on the phytosanitary certificate only if it is undertaken before export or in-transit.
- A phytosanitary certificate with no treatment will be issued if exporter opts to undertake fumigation on arrival.
