A property manager discovers during an inspection that the rental property has a methamphetamine contamination level of 2.5 micrograms per 100cm². The tenancy agreement includes a clause making tenants liable for any drug contamination. What action should be taken?
Correct Answer
B) Continue the tenancy, since the level is below the 15 µg/100cm² limit
Since April 2026 the Residential Tenancies (Managing Methamphetamine Contamination) Regulations 2026 have set the maximum acceptable meth residue level for rental premises at 15 µg/100cm², applying NZS 8510:2017 with modifications. At 2.5 µg/100cm² the property is below that level, so no decontamination is required and a contamination clause in the tenancy agreement does not change that.
Why This Is the Correct Answer
The Residential Tenancies (Managing Methamphetamine Contamination) Regulations 2026, in force from April 2026, set the maximum acceptable level of methamphetamine residue in rental premises at 15 µg/100cm². A reading of 2.5 µg/100cm² is within that level, so decontamination is not required and the tenancy can continue.
Why the Other Options Are Wrong
Option A: End the tenancy at once and claim the clean-up cost from the bond
At 2.5 µg/100cm² the property is within the acceptable level, so there are no grounds to end the tenancy or claim clean-up costs.
Option C: Issue a 14-day notice to remedy that requires the tenant to pay for professional cleaning
No decontamination is required below the maximum acceptable level, so there is no breach to remedy.
Option D: Require the tenant to arrange further testing at their own expense
Testing is the landlord's responsibility, and at this level no further testing or decontamination is required.
Deep Analysis of This Property Management Question
The question tests the legal threshold for meth residue in rentals. Since April 2026 it has come from regulations under the Residential Tenancies Act, not from guidance. Below the maximum acceptable level, the premises are treated as not contaminated.
Background Knowledge for Property Management
The Residential Tenancies (Managing Methamphetamine Contamination) Regulations 2026 came into force in April 2026. They adopt parts of NZS 8510:2017 for screening, detailed testing and decontamination, with modifications, and set the maximum acceptable level at 15 µg/100cm². The 15 µg figure was first proposed in the 2018 report of the Prime Minister's Chief Science Advisor. Landlords must not let premises they know are contaminated above that level, and must give tenants test results within 7 days (s 48(3B)).
Memory Technique
Remember '15 is the line' - if methamphetamine contamination is below 15 micrograms per 100cm², the property crosses the safety line and remains habitable. Think of it like a speed limit: going 50 in a 100 zone is perfectly safe, just as 2.5 micrograms in a 15-microgram limit is perfectly safe.
When you see any methamphetamine contamination question, immediately check if the level is above or below 15 micrograms per 100cm². If below, the property is safe and no action is required. If above, then consider remedial actions.
Exam Tip for Property Management
Compare the reading with the 15 µg/100cm² maximum acceptable level in the 2026 regulations. Below it, no decontamination is required, whatever the tenancy agreement says.
Real World Application in Property Management
A property manager receives a contamination test showing 8 micrograms per 100cm² after a tenant vacates. Despite having a clause making tenants liable for drug contamination, the property manager correctly determines no action is needed since the level is below the 15 microgram health guideline. The property can be immediately re-let without cleaning or remediation. This saves time, money, and avoids potential disputes with the former tenant over unnecessary cleanup costs.
Common Mistakes to Avoid on Property Management Questions
- •Confusing contractual liability with health safety requirements
- •Taking action when contamination is below health guidelines
- •Not knowing the 15 microgram threshold for residential properties
Related Topics & Key Terms
Key Terms:
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- → Which of the following is NOT a mandatory requirement for tenancy agreements under the Residential Tenancies Act?
- → How much notice must a landlord give a tenant before conducting a routine property inspection?
- → A tenant has given 21 days' notice to terminate a periodic tenancy but wants to leave 5 days early. What must happen for this to be legally acceptable?
- → A tenant claims bond refund for $1,200 but the landlord disputes $400 for carpet cleaning. The tenant disagrees and applies to the Tenancy Tribunal. What happens to the bond during this dispute?
- → How often may a landlord carry out routine inspections during a tenancy?
- → A landlord wants to increase rent for a periodic tenancy. What is the minimum notice period they must give?
- → During a property inspection, a property manager discovers the tenant has installed a spa pool without permission. What is the most appropriate first step?
- → By what date did all private rental properties in New Zealand have to comply with the healthy homes standards?
- → A property manager conducts an inspection and finds the tenant has installed a heat pump without permission. The tenancy agreement prohibits alterations without consent. What can the landlord legally require?
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