The new methamphetamine regulations have brought much needed clarity to an area that caused a lot of confusion in the past. For landlords, that is good news. There are now clear thresholds, clearer rules around testing and decontamination, and a more practical framework for managing methamphetamine contamination in rental properties.
The key numbers are now straightforward. A property is not contaminated if the methamphetamine level is 15.0 μg/100 cm² or under. At 15.1 μg/100 cm² to 30.0 μg/100 cm², the property is contaminated and the prescribed process including decontamination, applies. At 30.1 μg/100 cm² and over, the property is above the maximum inhabitable level, which may trigger the special termination provisions, subject to the remote and inconsequential area exception.
Insurance should be the first question
Before any major decisions are made, the first question should be: what does the insurance policy say?
Landlords should never assume methamphetamine contamination will automatically be covered, or that every insurer will respond the same way. Policy wording matters. Baseline evidence may matter. The excess also matters. In some cases, the insurance excess may be higher than the cost of further testing or the work required, which can affect whether making a claim is even worthwhile.
That is why insurance should be checked first, before the next steps are decided.
Let your property manager manage the process
This is not an area where landlords are well served by guesswork, shortcuts, or trying to piece the process together themselves.
If methamphetamine contamination is suspected or confirmed, one of the most important things a landlord can do is let their property manager manage the process from the outset. That means checking the insurance position first, speaking with the right testing or decontamination professionals early, understanding what is actually required, and then guiding the next steps properly.
Decontamination is a very prescribed process under the new regulations. It is not the same as a general clean, and it is not something landlords should assume can be handled informally or done properly without the right expertise. Once a property is contaminated, the regulations require the correct process to be followed and post-decontamination testing to confirm the property is no longer contaminated.
If that process is not managed properly, it can lead to repeated work, unnecessary cost, insurance issues, and a longer vacancy period. That is why landlords are best to let their property manager take control early and coordinate the process with the appropriate professionals.
What happens at 15.1 μg/100 cm² and over
This is the point landlords need to understand clearly.
Testing is mandatory if Police or a local authority advise that methamphetamine manufacture has, or is likely to have, taken place at the property, or if a valid screening assessment indicates contamination. In those situations, a detailed assessment must be arranged as soon as practicable.
If the result is 15.1 μg/100 cm² to 30.0 μg/100 cm², the property is contaminated. That does not automatically mean the tenancy must end, but it does mean the affected area must be dealt with through the proper pathway. Decontamination is required, and this is a situation that your property manager should manage carefully to ensure the correct process is followed, the necessary evidence is obtained, and the right Tribunal pathway is relied on. If the tenant caused the contamination, the landlord may apply to the Tenancy Tribunal to seek termination, and the success of that application will depend on the facts and the evidence presented to the Tribunal.
If the result is 30.1 μg/100 cm² and over, the property is above the maximum inhabitable level. That is a more serious situation and may allow the 7-day or 2-day uninhabitable termination notice provisions to be used, depending on who is at fault.
There is, however, an important exception. If only a remote and inconsequential part of the property is affected, such as an area that is physically separate or can be closed off, and the rest of the property can still reasonably be used as a residence, immediate termination may not be available. In that case, rent may need to reduce to reflect the loss of access, and the Tenancy Tribunal may need to determine the next step.
Baseline testing is still important
The new regulations do not require methamphetamine testing between tenancies in every case, but baseline testing remains sensible best practice.
At a bare minimum, a baseline screening assessment should be carried out when a landlord first takes out, or reviews, an insurance policy so there is a clear record of the property’s condition from the outset. If contamination is later identified, that baseline may be important in supporting the landlord’s insurance position.
A baseline screening assessment also helps establish the condition of the property at the start of a tenancy. If contamination is later discovered, that baseline can be important in working out when it occurred and whether the tenant may be responsible. Without it, proving that a tenant caused the contamination becomes much harder, and recovering decontamination costs from the tenant may be more difficult.
This is not about fear or overreaction. It is about good evidence, good process, and protecting your position if a problem later arises.
What about disclosure?
The new thresholds help here as well.
If a property is 15.0 μg/100 cm² or under, it is not contaminated under the regulations. Disclosure to prospective tenants on the basis of contamination is not required.
However, if a prospective tenant asks directly whether methamphetamine testing has been carried out, or whether there has been a result, the answer should be truthful. The key is to answer honestly and give the right context. If the property is not contaminated, meaning any level at 15.0 μg/100 cm² or under, it should be clearly explained that this is not considered contaminated under the regulations and does not require the prescribed decontamination process.
If the property is 15.1 μg/100 cm² and over, the more important issue is not disclosure. The more important issue is that the property must not be re-let in a contaminated state, and the proper decontamination process must be followed first.
A calmer and more practical approach
The good news is that this area is now much clearer than it used to be. The focus should no longer be panic. It should be process.
For landlords, that means having the right insurance in place, letting your property manager manage the process, using the right professionals from the start, and considering baseline testing as part of sensible risk management. Done properly, that reduces the chance of extra cost, repeated work, and longer vacancy periods.
If you have questions about methamphetamine testing, insurance requirements, or what these regulations mean for your property, speak with your Harcourts property manager early. A calm, informed approach is always the best one.
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