Smoke and CO alarm certificate in Princeton, NJ
Quick answer: Selling or renting out a one- or two-family home in Princeton (Mercer County) needs a certificate of smoke alarm and carbon monoxide alarm compliance before the new occupant moves in. In Princeton, the issuing agency is Princeton Bureau of Fire Safety. The state default fee is $45 if requested more than 10 business days ahead; towns may set their own fees, so confirm the fee and lead time with the town.
Selling or renting out a one- or two-family home in Princeton (Mercer County)? You need a certificate of smoke alarm and carbon monoxide alarm compliance before the new occupant moves in.
Who issues the smoke and CO certificate in Princeton, NJ? official source
In Princeton, the issuing agency is Princeton Bureau of Fire Safety.
Issuing agency: Princeton Bureau of Fire Safety.
Official source: https://www.princetonnj.gov/245/Bureau-of-Fire-Safety (found 2026-10-12).
Bureau page and compliance guide. Search summaries report fees of $95 (more than 10 days before closing), $140 (4-10 days) and $211 (fewer than 4 days).
Fees, lead times and forms change. Confirm with the town before you schedule. Last checked 2026-10-12.
What are New Jersey's statewide smoke and CO certificate rules?
A certificate of smoke alarm and carbon monoxide alarm compliance is needed before a one- or two-family home is sold, leased or changes occupants. It isn't transferable, and the state default fee is $45 if requested more than 10 business days ahead ($90 at 4-10 business days, $161 at fewer than 4). Towns with a local enforcing agency may set their own fees.
- When: before a one- or two-family home or attached single-family home is sold, leased or otherwise changes occupants (N.J.A.C. 5:70-2.3).
- Who issues it: the local enforcing agency (usually the town's fire prevention bureau, fire official or fire district). Where no local agency enforces the Uniform Fire Code, the NJ DCA Division of Fire Safety issues it, through its online portal. The agency may accept a certification in lieu of inspection on its own form (DCA in-lieu form).
- Validity: not transferable. If the change of occupant doesn't happen within 6 months, a new application is required. Some towns set shorter windows: Woodbridge 60 days and Cherry Hill 90 days, per town documents.
- State default fee (N.J.A.C. 5:70-2.9(d)): $45 if requested more than 10 business days before the change of occupant, $90 at 4-10 business days, $161 at fewer than 4. Towns with a local enforcing agency may set their own fees by ordinance, and many do.
- Fire extinguisher: the certificate historically also covered a portable kitchen extinguisher (hence the names CSACMAPFEC and, older, CSDCMFEC). Several municipal pages (e.g. Toms River, Sayreville) report that as of Feb 3, 2025 a portable extinguisher is no longer required for this certificate. confirm with town: we haven't confirmed the statewide rule text. Check your town's current checklist.
Full NJ home-sale checklist → · Mercer County lead evaluators
Which other Mercer County towns have smoke and CO certificate guides?
Next step
Getting the certificate in Princeton
- Contact the issuing agency above and confirm the fee, lead time and inspection checklist.
- Apply more than 10 business days before the closing or move-in date, which keeps the state default fee at its lowest tier where it applies.
- Work through the NJ home sale checklist for the other certificates you may need.
Frequently asked questions
Do I need a smoke and CO certificate to sell a home in Princeton, NJ?
Yes, if you are selling or renting out a one- or two-family home in Princeton (Mercer County). You need a certificate of smoke alarm and carbon monoxide alarm compliance before the new occupant moves in.
Who issues the smoke and CO certificate in Princeton?
In Princeton, the issuing agency is Princeton Bureau of Fire Safety. Official source: town page.
How much does a smoke and CO certificate cost in New Jersey?
The state default fee (N.J.A.C. 5:70-2.9(d)): $45 if requested more than 10 business days before the change of occupant, $90 at 4-10 business days, $161 at fewer than 4. Towns with a local enforcing agency may set their own fees by ordinance, and many do.
How long is a New Jersey smoke and CO certificate valid?
Not transferable. If the change of occupant doesn't happen within 6 months, a new application is required. Some towns set shorter windows: Woodbridge 60 days and Cherry Hill 90 days, per town documents.
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