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Skokie, IL Building Safety: Carbon Monoxide Detectors (2026)

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

Key Facts

Listing required
UL or Canadian Standards Association
Also must meet
Illinois State Fire Marshal rules
Coverage
single-family and each multi-family/mixed-use unit
Governing code
2021 IRC § R315.1 as locally amended
Verified at
building permit and final inspection

Summary

Skokie's residential code requires carbon monoxide alarms that meet Illinois State Fire Marshal rules and carry UL or Canadian Standards Association listing in every dwelling unit, defined to include single-family homes and each unit of a multi-family or mixed-use building.

(28)R315 Carbon Monoxide Alarms. Delete text in its entirety. Replace with R315.1 Carbon Monoxide Detection, Group R. "Approved carbon monoxide alarm" or "alarm" means a carbon monoxide alarm that complies with all the requirements of the rules and regulations of the Illinois State Fire Marshal, bears the label of a nationally recognized testing laboratory, and complies with the most recent standards of the Underwriters Laboratories or the Canadian Standard Association. "Dwelling unit" means a room or suite of rooms used for human habitation, and includes single family residences as well as each living unit of a multiple family residence and each living unit in a mixed use building.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 205 | Zoning: Supplement 89).

Full Breakdown

1, Carbon Monoxide Detection, for Group R occupancies. The amendment defines an 'approved carbon monoxide alarm' as one that complies with all the rules and regulations of the Illinois State Fire Marshal, bears the label of a nationally recognized testing laboratory, and meets the most recent standards of Underwriters Laboratories or the Canadian Standards Association; a device that is not independently tested and listed to those standards does not satisfy the Village's definition even if it is marketed as a carbon monoxide detector. The amendment also defines 'dwelling unit' broadly for purposes of the carbon monoxide requirement: it reaches not just single-family residences but each living unit of a multiple-family residence and each living unit inside a mixed-use building, so a unit above ground-floor retail is covered on the same terms as a detached house. 3.

Violations & Fines

Installing a carbon monoxide alarm that does not carry an Illinois State Fire Marshal-compliant, UL or Canadian Standards Association listing fails the Section R315.1 definition and will not pass the inspections required for a certificate of compliance under Section 111.3; noncompliance is enforced through the general penalty at Section 1-6.

Frequently Asked Questions

What carbon monoxide alarm brands satisfy Skokie's code?
Section R315.1 doesn't name brands; it requires the alarm to comply with all Illinois State Fire Marshal rules and to bear the label of a nationally recognized testing laboratory meeting the most recent Underwriters Laboratories or Canadian Standards Association standards, so look for that dual listing on the packaging.
Do apartments and condos need carbon monoxide alarms too, not just houses?
Yes. Skokie's amended definition of 'dwelling unit' for this requirement expressly includes each living unit of a multiple-family residence and each living unit inside a mixed-use building, not just single-family residences.
Which code section governs carbon monoxide alarms in Skokie?
Section 22-63(28) of the Village Code replaces Section R315 of the 2021 International Residential Code with Section R315.1, Carbon Monoxide Detection, setting the Village's own alarm-listing and dwelling-unit definitions for Group R occupancies.

Sources & Official References

Other rules in Skokie

All Skokie rules

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