Methamphetamine regulations: clearer rules for everyone

While methamphetamine contamination is not something most landlords or tenants expect to face, it is a serious issue when it does arise - and one that requires careful handling.

Thankfully, new regulations that came into force on 16 April 2026 have removed much of the guesswork, setting out clearer rules around testing, contamination levels and decontamination.

For landlords, the regulations set two clear thresholds.
If methamphetamine residue is above 15µg/100cm², the property, or affected part of it, is legally considered contaminated and must be decontaminated. Landlords also need to be careful not to knowingly rent out a property above this threshold, as this may result in Tenancy Tribunal orders, compensation or exemplary damages.

If methamphetamine residue is above 30µg/100cm², the property is considered uninhabitable. At this point, either party may be able to end the tenancy with the correct notice - for landlords it’s a minimum of 7 days’ notice, while tenants only need to provide 2 days’ notice.

The rules also clarify how testing should be handled.

Screening Assessments: Anyone can complete a basic screening test at any time using an approved kit. However, we still recommend a professional undertake this test so you know it’s reliable. This initial test combines multiple samples to give an indication of whether meth is present.

Detailed Testing: If a screening test comes back above the 15µg/100cm² threshold, or if the Police or Council notify you of suspected manufacturing, a detailed test is legally required. This must be carried out by a qualified, independent professional who has no ties to a decontamination provider, giving a room-by-room breakdown to guide any required clean-up.

For tenants, the changes provide more certainty too.
If testing is carried out during a tenancy, current tenants must be told the results within seven days. If a property is found to be uninhabitable, there are clear notice periods and processes in place. That means everyone has a better understanding of what happens next.

Practical things for landlords to keep in mind:
While testing between tenancies is not legally compulsory, establishing a consistent routine to get your rental checked pre-tenant and upon exit is highly recommended. 

It can provide useful evidence, give peace of mind for incoming tenants and may also support insurance requirements. Because policies can vary, it’s worth checking your cover for testing, decontamination and loss of rent, as each insurer may treat methamphetamine contamination differently.

How we work alongside you:
As mentioned earlier, most landlords and tenants will never have to deal with this issue. However, if you do, our professional Property Managers have the systems and support in place to help manage the situation properly, including access to approved testing and decontamination providers, and in-house legal expertise where required. All you have to do is call.

Want the key points in one place? Download our ‘Methamphetamine Regulations: What Landlords Need to Know’ guide here.

Have questions? Get in touch with your local Barfoot & Thompson branch, or talk to your dedicated property manager today.

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