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Cherry Hill, NJ Building Safety: Carbon Monoxide Detectors (2026)

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

Key Facts

Covers
one- and two-family dwellings (NJAC 5:10-1.5)
Requirement
smoke alarm in every sleeping area
Backup alarm
within 10 feet outside sleeping area
Age limit
alarms and CO detectors, max 10 years
Checked
annual inspection and at property sale

Summary

Cherry Hill Township requires every one- and two-family dwelling to keep a working smoke alarm in each sleeping area, and it requires smoke alarms and carbon monoxide detectors alike to be no more than ten years old. The Fire Marshal's Office checks compliance at annual inspections and again whenever a home is sold.

All one- and two- and attached one- and two-family dwellings as defined in NJAC 5:10-1.5 within the Township of Cherry Hill shall have a least one fully operable smoke alarm located within each sleeping area. All such residential sleeping areas enclosed by a door or otherwise shall, in addition have at least one fully operable smoke alarm located outside each sleeping area within 10 feet of such sleeping area. Installation of the smoke alarms shall be in accordance with the manufacturer specifications and National Fire Protection Association. ... In addition, smoke alarms and carbon monoxide detectors must have been manufactured within ten (10) years of the inspection.

Full Breakdown

C. 5. It requires at least one fully operable smoke alarm within each sleeping area, plus an additional alarm outside any sleeping area that is enclosed by a door, located within ten feet of that area, installed per manufacturer specifications and NFPA standards. C. 5:70 Subchapter 3. Paragraph 4 extends the ten-year age ceiling to carbon monoxide detectors as well, so a CO detector older than ten years fails the compliance standard exactly as an aged smoke alarm would. Enforcement, per paragraph 5, runs through the Fire Marshal's Office during annual fire inspections, on receipt of a complaint about a missing or inoperable alarm, or at the inspection required before a property sale, and the Township's Building, Property Maintenance or Housing Inspector can enforce the section as well. The provision was amended by Ordinance No. 2018-7 on July 23, 2018.

Violations & Fines

A dwelling found without a compliant, sufficiently current smoke or carbon monoxide alarm at a Fire Marshal inspection or a pre-sale inspection is in violation of § 16-1.11(q). Chapter 16's general penalty at § 16-1.11(a)(5) exposes an owner to a fine of up to $50.00, up to fifteen days' imprisonment, or both, unless a different penalty applies under state law.

Frequently Asked Questions

Does Cherry Hill require carbon monoxide detectors in houses?
Yes. Section 16-1.11(q) ties CO alarms to the Township's smoke alarm compliance program: alarms and carbon monoxide detectors in one- and two-family dwellings must have been manufactured within ten years of the inspection, so an aged or missing CO detector fails compliance the same way an aged smoke alarm does.
Can I use a battery-powered smoke alarm in my Cherry Hill home?
Only if hardwired alarms were not required by the building code in effect when your home was built. Where hardwired units were required at construction, § 16-1.11(q) forbids replacing them with battery-powered alarms, per N.J.A.C. 5:70 Subchapter 3.
When does the Township check my smoke and CO alarms?
The Fire Marshal's Office enforces § 16-1.11(q) during annual fire inspections, after a complaint about a missing or non-working alarm, and at the point-of-sale inspection required before a property changes hands; the Building, Property Maintenance or Housing Inspector can enforce it too.

Sources & Official References

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