Meth Contamination in NZ Rentals: What Landlords Need to Know First If you rent out a home in New Zealand, it pays to understand meth decontamination before a problem appears. Since 16 April 2026, clear legal levels decide when a rental needs testing, cleaning or even an end to the tenancy. This meth decontamination NZ guide explains what the 2026 rules mean for landlords and rental property owners: when...