Methamphetamine Contamination Regulations
After a long wait, the Ministry of Housing and Urban Development (HUD) has announced new methamphetamine contamination regulations for rental housing. These rules are designed to provide greater clarity for landlords, tenants and property managers, ensuring consistent national standards for testing and remediation.
What is being updated
Clear Contamination Thresholds have now been advised as follows:
Under the proposed regulations, methamphetamine residue up to 15 µg per 100 cm² will be deemed safe.
Above 15 µg: The affected area must be decontaminated.
Above 30 µg: Either party may end the tenancy – tenants with two days’ notice or landlords with seven.
The new system applies room-by-room, meaning unaffected areas can remain occupied.
Testing Requirements have also been confirmed, and two levels of testing will apply:
Screening assessments can be done by landlords, tenants or professionals to detect meth presence.
Detailed testing must be undertaken by qualified, independent testers when screening exceeds 15 µg or where meth use or manufacture is suspected.
Approved methods include laboratory composite tests and validated screening kits. Field composites and unverified tests will no longer be accepted.
Where residue exceeds safe limits, decontamination must follow the principles of the new NZ Standard 8510:2017, with retesting required to confirm levels are below 15 µg before reoccupation. The regulations also clarify how tenant belongings should be managed in contaminated properties, allowing disposal when cleaning or storage is not viable.
When and What’s Next
The regulations are currently being drafted and are expected to come into effect in mid-2026. HUD will release detailed guidance for landlords and tenants ahead of implementation.
Our Take
At Just Property Management, we welcome the clarity these regulations will bring. Clear thresholds and processes protect both landlords and tenants, supporting safer, better managed rental homes across Wellington.