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Clackamas County, OR Building Safety: Carbon Monoxide Detectors (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Detector requirement
Smoke and CO detectors, § 8.10.050(J)(1)
Placement standard
Oregon Residential Specialty Code
Applies to
Registered short-term rentals
Also required
2 fire extinguishers per dwelling unit
Enforcement
Citation, fine, or registration revocation

Summary

Clackamas County's only codified carbon monoxide detector mandate applies to short-term rentals: Section 8.10.050(J)(1) requires working smoke and carbon monoxide detectors installed and maintained as the Oregon Residential Specialty Code requires, on top of two fire extinguishers.

These county ordinances apply to unincorporated areas of Clackamas County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

J. Building and Fire Safety. A short-term rental shall comply with all ordinances that apply to a dwelling, and all structural components shall be kept in sound condition and good repair. In addition:

1. Working smoke detectors and carbon monoxide detectors shall be installed and maintained in locations as required by the Oregon Residential Specialty Code.

2. Working fire extinguishers shall be placed in the kitchen and next to each wood burning appliance in an easily accessible location. A minimum of two (2) extinguishers are required in each Dwelling Unit.

3. Code-compliant pool and hot tub barriers shall be present.

4. Every sleeping area shall have not less than one operable emergency escape and rescue opening, including basement sleeping areas.

5. The dwelling shall have no open building or zoning code violations.

[Added by Ord. 04-2023, 9/7/23]

Full Breakdown

050(J) requires a short-term rental to comply with all ordinances that apply to a dwelling and to keep every structural component in sound condition and good repair. Within that subsection, item 1 specifically requires "working smoke detectors and carbon monoxide detectors" installed and maintained "in locations as required by the Oregon Residential Specialty Code," tying the county's rule to the state building code's placement standards rather than setting an independent county standard. The same building-and-fire-safety subsection layers on additional equipment requirements for a registered short-term rental: working fire extinguishers placed in the kitchen and next to each wood-burning appliance, with a minimum of two extinguishers required in each dwelling unit; code-compliant pool and hot tub barriers where applicable; at least one operable emergency escape and rescue opening in every sleeping area, including basement sleeping areas; and no open building or zoning code violations on the dwelling.

This detector requirement is embedded in the short-term rental registration standards, so it is enforced as a condition of keeping that registration rather than as a freestanding county-wide detector mandate for every residence.

Violations & Fines

A short-term rental found without a working smoke or carbon monoxide detector violates Section 8.10.050(J)(1) and can be cited under the Chapter 8.10 enforcement process. Section 8.10.080(D) allows an immediate citation without a prior warning letter, and the cited owner has 30 days to fix the deficiency and pay any penalty or request a hearing under Chapter 2.07. Section 8.10.090 authorizes suspension or revocation of the short-term rental registration plus a fine set by Board of County Commissioners resolution. If a missing detector is bound up with a dangerous-building posting under Chapter 9.01, the Building Official can revoke the registration on an emergency basis under Section 8.10.070, with any appeal combined with the dangerous-building appeal under Section 9.01.150.

Frequently Asked Questions

Does Clackamas County require carbon monoxide detectors?
The county code's carbon monoxide requirement is written into the short-term rental standards at Section 8.10.050(J)(1), which requires working smoke and carbon monoxide detectors installed and maintained in the locations the Oregon Residential Specialty Code specifies.
What detector locations does the rule require?
Section 8.10.050(J)(1) does not list specific rooms itself; it incorporates the Oregon Residential Specialty Code's placement requirements by reference, so a short-term rental must follow that state code's location standards for smoke and CO detectors.
What happens if a short-term rental is missing a required detector?
It violates Section 8.10.050(J)(1) and can be cited immediately under Section 8.10.080(D). The owner has 30 days to fix it and pay any penalty or request a hearing, and Section 8.10.090 allows suspension or revocation of the rental's registration plus a fine.

Sources & Official References

Other rules in Clackamas County

All Clackamas County rules

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