ORS § 90 § 90.317
Repair or replacement of carbon monoxide alarm.
Operative Text
(1) A landlord shall ensure that a dwelling unit has one or more carbon monoxide alarms installed in compliance with State Fire Marshal rules and the state building code if the dwelling unit: (a) Contains a carbon monoxide source; or (b) Is located within a structure that contains a carbon monoxide source and the dwelling unit is connected to the room in which the carbon monoxide source is located by a door, ductwork or a ventilation shaft. (2) The landlord shall provide the tenant of the dwelling unit with a written notice containing instructions for testing of the alarms. The landlord shall provide the written notice to the tenant no later than at the time that the tenant first takes possession of the premises. (3) If the landlord receives written notice from the tenant of a deficiency in a carbon monoxide alarm, other than dead batteries, the landlord shall repair or replace the alarm. (4) Supplying and maintaining a carbon monoxide alarm required under this section is a habitable condition requirement under ORS 90.320.
ORS § 90.317 requires landlords to install one or more carbon monoxide alarms in dwelling units that contain a carbon monoxide source or are connected to a space with such a source, in accordance with State Fire Marshal rules and the state building code. Landlords must also give tenants written testing instructions no later than when the tenant first takes possession of the unit. If a tenant reports a non-battery-related deficiency in an alarm in writing, the landlord is obligated to repair or replace it. Maintaining a functioning carbon monoxide alarm under this section is treated as part of the habitability standard established by ORS 90.320.
Plain English — not legal advice.
Under ORS § 90.317, compliant operators generally confirm whether each dwelling unit contains or is structurally connected to a carbon monoxide source, and install alarms that meet State Fire Marshal rules and the state building code accordingly. At or before move-in, landlords typically provide each incoming tenant with written instructions explaining how to test the alarms. When a tenant submits written notice of an alarm deficiency that is not simply a dead battery, a compliant operator arranges for repair or replacement of the alarm in a timely manner, keeping in mind that this obligation is tied to the habitability requirements of ORS 90.320.
General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.
ORS § 90.317 gives tenants the right to a properly installed carbon monoxide alarm and written testing instructions from their landlord at the start of their tenancy. If an alarm is defective for a reason other than dead batteries, tenants generally put their notice of the deficiency in writing to create a clear record of the landlord's repair obligation. Because this provision is linked to habitability under ORS 90.320, a failure to maintain a working alarm may be relevant to broader habitability remedies; tenant-rights organizations in Oregon can describe the range of options available under state law.
General guidance for tenants — not legal advice for your specific situation. Consult a tenant-rights organization or attorney for advice on your case.
Generated October 7, 2026 — auto-generated, not yet human-reviewed. See /transparency for methodology.
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