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RCD and smoke alarm compliance for NT rentals
The short answer
In the Northern Territory the landlord or agent must test the RCDs within 30 days of the tenancy starting and have any that fail replaced by a licensed electrical worker. Smoke alarms must be photoelectric, installed and tested within 30 days before a tenancy.
Safety switches and RCDs
The landlord or agent tests the RCDs within 30 days of the tenancy start date, and any that do not work must be replaced by a licensed electrical worker. A separate homeowner installation requirement commenced on 1 July 2026 under the newer legislation.
Smoke alarms
Approved photoelectric alarms meeting AS 3786, either hard wired or a 10-year sealed battery type. The landlord installs them and tests them within 30 days before a tenancy starts. The tenant then tests them yearly.
Worth knowing
The NT rules are recent, so double check the detail
The Electrical Safety Act 2022 and the Electrical Safety Regulations 2024 are new enough that guidance is still settling. Confirm the current position with NT WorkSafe before relying on it for a specific property.
Two different 30-day windows
RCDs are tested within 30 days after the tenancy starts. Smoke alarms are tested within 30 days before it. They are easy to mix up.
When it needs doing
Tenancy start. RCDs are tested within 30 days of the start; smoke alarms within 30 days before it.
Who is responsible for what
The landlord or agent tests the RCDs within 30 days of the tenancy starting, and installs and tests the alarms within 30 days before it. Replacing a faulty RCD is licensed electrical work. The tenant tests the alarms yearly during the tenancy.
What the report should record
A verbal all clear is worth nothing six months later when someone asks for evidence. Whatever you use to do the check, these are the things worth having on the written record in Northern Territory:
- Property address and the tenancy start date, since both 30 day windows run off it
- RCD test date, which circuits are protected, and trip test results
- Any RCD that failed, and the date it was replaced
- Alarm locations, confirmed as photoelectric
- Alarm type, hard wired or 10 year sealed battery, with expiry dates
- Test result for each alarm and the date tested
- Defects found, with photos
- Signature of the person who did the work
What commonly fails
The defects that turn up most often on Northern Territory rental properties:
- RCD tests done at the inspection but recorded without a date, which leaves the 30 day window unprovable
- Battery alarms that are not the 10 year sealed type
- Alarms tested after the tenancy started rather than in the 30 days before it
- Non-photoelectric alarms still in service
Do the check on your phone, hand over the report before you leave
Safety Check Pro walks you through the checkpoints for Northern Territory, records your test results and photos, and produces a branded PDF report with your own logo on it. Works offline, syncs when you have signal.
See how it works All report types
Free plan includes 4 reports a month. No card needed to start.
Common questions
When do RCDs need testing in an NT rental?
Within 30 days of the tenancy start date. Any that fail must be replaced by a licensed electrical worker.
What smoke alarms are required in the NT?
Approved photoelectric alarms meeting AS 3786, either hard wired or 10-year sealed battery.
Who tests the smoke alarms in an NT rental?
The landlord installs and tests them within 30 days before the tenancy starts. The tenant then tests them yearly.
Which legislation covers this?
The Electrical Safety Act 2022 and the Electrical Safety Regulations 2024. Both are recent, so confirm current guidance with NT WorkSafe.
Other states
VIC NSW QLD SA WA TAS ACT All electrical
Last reviewed: September 2026. This page is general information for tradespeople and property owners, not legal advice. Rental and electrical safety laws change, and the requirements for an individual property can differ. Confirm the current position with NT WorkSafe before you rely on it.