Meth Rules, Finally With Numbers

At long last, the long and messy history of meth in NZ rentals is about to come to an end. For years, the issue has been more myth than method: landlords spending thousands on unnecessary clean-ups, tenants spooked out of perfectly safe homes, and insurers rewriting policies faster than adjudicators could decide cases. Now, with the Ministry of Housing and Urban Development’s latest announcement on the regulations, clarity arrives in the form of two simple numbers: 15 and 30.

Fifteen micrograms per hundred square centimetres is the new bright line between “clean enough” and “contaminated.” Thirty is the red flag. If the level exceeds 30 µg/100cm2 then s59B of the RTA triggers and the landlord or tenant can walk away from the tenancy with a very short notice (2 or 7 days). For a sector that has lived for years in a fog of folklore and over-correction, the new settings promise a little sobriety.

From panic to protocol

For the better part of a decade, meth contamination has been the rental industry’s Boogeyman. Tribunals heard cases where landlords demanded a full strip-out for residue that posed less risk than a third-hand vape. Insurers pulled levers and rewrote clauses, sometimes lowering their thresholds to the point where “safe” was impossible. Tenants, understandably, were spooked.

The regulations don’t erase every grey area, but they do what regulation is meant to do: they replace competing guesses with a decision tree. Above 15? Clean until you’re below it. Above 30? End the tenancy. Everything else flows from there.

What changes on the ground

Testing gets formalised. Quick screening assessments are allowed, even by landlords, as long as approved kits are used. If those results tip over 15, detailed testing must follow, and only...