Wheaten Chaff

Country
Brunei Darussalam (BN)
Scientific Name
Triticum spp.
End use
Stockfeed
NPPO Details
Plant Protection Service, Department of Agriculture and Agrifood, Ministry of Industry and Primary Resources
Relevant Web Addresses
http://www.agriculture.gov.bn/
Criteria Criteria Required?
Import Permit Yes
Phytosanitary Certificate Yes
Additional Declaration/Endorsement No
Protocol Market No
Consignments are to be free from pests, soil, weed seeds and extraneous material.


A copy of the import permit must be presented to an Authorised Officer at the time of inspection.


It is the exporter’s responsibility to ensure that the phytosanitary certificate is issued within 14 days of the consignment being exported from Australia.

Refer to the departure date and inspection date in the Request for Permit.

Consignments are to be treated with either: 
  • Methyl bromide at 32 grm/m3 for 24 hours at 21 degrees Celsius or above at NAP;

OR

  • Phosphine at 5 grm/m3 for 120 hours.
Please note that the department's minor use permit for aluminium phosphide and cylinderised phosphine gas (both 99% phosphine and 2% phosphine active constituent versions) only allows for above-label concentrations if fumigation is conducted over a minimum exposure period of:

  • 7 days when commodity temperature is above 25 degrees Celsius
  • 10 days when commodity temperature is 15-25 degrees Celsius
  • 20 days for surface-only applications in well-sealed structures greater than 375m3 (300 metric tonne capacity)—it is the fumigator's responsibility to apply as appropriate.
Although the minimum fumigation duration and/or temperature required by the NPPO is below this, the department's minor use permit does not allow for treatments shorter than the above periods or at lower temperatures. The phosphine concentration applied must still meet the NPPO minimum concentration.

Treatment requirements with minimum concentrations greater than the below schedules are considered above-label treatments:

FumigantConcentration
Aluminium phosphide1.5 grm/m3
99% phosphine gas1.4 grm/m3
2% phosphine gas70 grm/m3 (1.4 grm/m3 phosphine)
(Magnesium phosphide)(No departmental minor use permit available)
 

Treatment details for phosphine treatments are to be endorsed in the Treatment section as:

“WITH [PHOSPHINE/ALUMINIUM PHOSPHIDE] AT [NPPO concentration]GRM/M3 FOR [NPPO minimum duration] OR MORE AT [temperature] DEGREES CELSIUS [add “OR ABOVE" if fumigation temperature is greater than NPPO minimum temperature]"

For example, if an NPPO requires aluminium phosphide  treatment at 5 GRM/M3 FOR 5 DAYS at 20 DEGREES CELSIUS, the treatment should be conducted at 5 grams per cubic metre for 10 days at 20 degrees and the text should read as:

“WITH ALUMINIUM PHOSPHIDE AT 5 GRM/M3 FOR 5 DAYS OR MORE AT 20 DEGREES CELSIUS"



Details of treatment to be endorsed on the phytosanitary certificate in the treatment section.

If wooden packaging is to be used it must be treated using one of the below treatments:
  • Fumigated with Methyl bromide at 48 grm/m3 for 24 hours at 10 degree Celsius or above;

OR

  • Heat treated at 56 degree Celsius core temperature for 30 minutes.
Wooden packaging treatment details are not to be endorsed on phytosanitary certificate.

The exporter is to provide evidence attesting to the treatment and present it to the department at time of authorisation.

Import permit dated 25 April 2018, information from Agriculture Counsellor 9 January 2026.

12/01/2026 - Updated general requirements to state phytosanitary certificate must be issued within 14 days of export.
27/03/2025 - Amended treatment text.
Initial Uploaded: 29/07/2014
Reviewed Uploaded: 18/07/2026