Version 3.0 of the Methyl Bromide Fumigation Methodology is now in force and approved arrangement class conditions have been updated
01 May 2025
Who does this notice affect?
Import-related biosecurity treatment stakeholders, including all importers, brokerages, onshore approved arrangement holders, overseas government and industry treatment providers, relevant domestic state and territory government agencies, and other shipping, freight, and logistics peak industry bodies.
What has changed?
Methyl Bromide Fumigation Methodology (version 3.0)
Version 3.0 of the Methyl Bromide Fumigation Methodology is now in effect. Find the new version on the department’s methodologies and documents for biosecurity treatments webpage to ensure you are meeting the new requirements and conducting fumigations correctly.
All methyl bromide fumigations with a start date and time at or after 1 May 2025 00:00 (midnight local time) must adhere to the new requirements. Local time means the place where the fumigation was performed.
Please note: to ensure a smooth transition, Australia will accept treatment certificates issued under version 2.0 requirements until 30 June 2025. After this date, treatment certificates must comply with the requirements of version 3.0 of Australia’s Methyl Bromide Fumigation Methodology.
New templates are available on our webpage.
Class 4.6 Fumigation Site (version 5.0) and class 12.1 Methyl Bromide Fumigation (version 4.0) conditions
Version 5.0 of the class 4.6 Fumigation Site and version 4.0 of the class 12.1 Methyl Bromide Fumigation condition documents are now in effect.
The class 4.6 Fumigation Site and class 12.1 Methyl Bromide Fumigation conditions are on the department’s webpage at Conditions for operating approved arrangements.
Further information
For further details about version 3.0 of the Methyl Bromide Fumigation Methodology, visit our webpage.
Please click here to view IIAN 137-2025 in its entirety.