Chandler, AZ Fire Regulations: Smoke Detectors (2026)
Key Facts
- Applies to
- existing R-3 and R-4 group homes
- Requirement
- all smoke detectors interconnect on one alarm
- Wireless allowed
- if all units sound together
- Audibility
- clear in every bedroom, doors closed
- Max penalty
- $2,500/$20,000 fine, 6 months jail
Summary
Chandler's Fire Code adds a local rule for existing R-3 and R-4 group homes: every smoke detector in the unit must be interconnected so one alarm triggers all of them, loud enough to be heard in every bedroom with the doors closed.
1103.8.2.1 Interconnection for R-3 and R-4 group homes. All smoke detectors located in R-3 and R-4 group occupancy types shall be interconnected in such a manner that the activations of one alarm will activate all of the alarms in the individual unit. Physical interconnection of smoke alarms shall not be required where listed wireless alarms are installed and all alarms sound upon activation of one alarm. The alarm shall be clearly audible in all bedrooms over background noise levels with all intervening doors closed. The exceptions in Section 1103.8.2 do not apply.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 79).
Full Breakdown
' R-3 and R-4 are the IBC/IFC classifications for small group-care and residential-care facilities, the kind of licensed group home or assisted-living unit that houses more than five people receiving custodial care but doesn't rise to a full institutional occupancy. The section allows one modern shortcut: physical wiring between detectors 'shall not be required where listed wireless alarms are installed and all alarms sound upon activation of one alarm,' so a wireless interconnected system satisfies the rule without rewiring the unit. 2 from applying here, meaning operators of these group homes can't rely on IFC exemptions that might otherwise excuse existing buildings from retrofitting alarms.
Violations & Fines
Chapter 28's general fire code penalty applies: Section 28-26 makes a noncompliant condition a Class 1 misdemeanor, fined up to $2,500 for an individual or $20,000 for the operating entity, with up to six months' imprisonment or three years' probation, and the fire code official may also issue a notice of violation and reinspection fee under Sections 28-9 and 28-14.
Frequently Asked Questions
Do all Chandler homes need interconnected smoke detectors?
Can a group home use wireless smoke alarms instead of hard-wiring?
How loud must the alarm be under this rule?
Sources & Official References
Other rules in Chandler
Compare Chandler to another location·View the Arizona fire regulations overview
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