The concentration of phosphine residue in grain post fumigation (where it is currently being measured) that poses no risk to workers is unknown. The SWA TLV-TWA is soon to be reduced to 0.05 ppm. Continuing current practices could result in the loss of phosphine as a registered stored grain fumigant and there is an urgent need to optimise post-fumigation protocols. This investment will address this by delivering: * Data packages required to update the phosphine label registration with the APVMA, including appropriate ventilation and withholding periods to reduce phosphine residue in grain to thresholds that meet SWA worker exposure limits. * A new or updated Australian standard for phosphine fumigation, including an agreed protocol of how phosphine residue in grain should be measured at receival sites to meet the SWA TLV-TWA, and appropriate clearance thresholds. * An on-farm protocol for growers to measure phosphine residue prior to outturn, to ensure residues are below thresholds set in the above standard.

This is the latest observation of this contract, and the explorer’s totals use its value.

$2,295,271.00

Full reported contract value · AUD including applicable GST · 2025-08-19 to 2028-08-31

Reporting agency: Grains Research and Development Corporation
Reported supplier: Queensland Department of Primary Industries (QDPI)
Reported ABN: 66 934 348 189. Exemption as supplied: No.
Category: Crop production and management and protection
Procurement method: Limited tender
Original publication: 2025-08-19 12:54:00 (ACT local time as supplied)
Amendment publication: Original notice; no amendment publication supplied
Amendment reason: Not supplied
Agency reference: CN-DAQ2507-002RTX
Approach to market / standing offer: ATM not supplied / Standing offer not supplied
Consultancy: No
Confidentiality as reported: Contract: No; outputs: No
Source observation: CN4181260 · Official weekly workbook ending 2025-08-23 · sheet “Contract Notice Export”, row 129.

The original register may now show later corrections. The card and this observation keep the saved source date.