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Worcester, MA Building Safety: Carbon Monoxide Detectors (2026)

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

Key Facts

Enforcing office
Worcester Fire Department
Single-family fee cap
$50 per inspection
Over-6-unit fee cap
$500 per inspection
Combined inspection rule
No extra fee if done with smoke test
Underlying mandate
G.L. c. 148, § 26F1/2 (state law)

Summary

Worcester caps what the fire department can charge for the carbon monoxide alarm inspection state law requires, from $50 for a single unit up to $500 for buildings with more than six units. Chapter Ten, Section 13(c) sets the schedule and waives a second fee when both inspections happen together.

§ 13. Fees for Certain Licenses, Permits and Services

(c) If a smoke detector inspection, conducted pursuant to section 26F, and a carbon monoxide alarm inspection, conducted pursuant to section 26F 1/2, are conducted simultaneously, the owner shall not be subject to an additional fee for the carbon monoxide alarm inspection. The fee for either a carbon monoxide alarm inspection or a smoke detector inspection, conducted separately, shall not exceed: $50 for a single-family dwelling or a single dwelling unit; $100 for a 2-family dwelling; $150 for any building or structure with 6 or fewer residential units; and $500 for any building or structure with more than 6 units.

Full Breakdown

c. 148, § 26F1/2) requires carbon monoxide alarms in most residential buildings, and Worcester's Revised Ordinances of 2008 handle the inspection side of that mandate in Chapter Ten, Section 13, Fees for Certain Licenses, Permits and Services. Under Section 13(c), if a smoke detector inspection under Section 26F and a carbon monoxide alarm inspection under Section 26F1/2 happen at the same visit, the property owner is not charged an additional fee for the carbon monoxide check, only the single combined fee. Inspected separately, neither inspection fee can exceed a schedule tied to building size: fifty dollars for a single-family dwelling or a single dwelling unit, one hundred dollars for a two-family dwelling, one hundred fifty dollars for any building with six or fewer residential units, and five hundred dollars for any building with more than six units.

c. 40, Section 22F, described in Section 13(b). Because the underlying alarm requirement itself comes from state law, Worcester's own ordinance does not add a separate mandate to install carbon monoxide alarms; its local role is capping and structuring what the fire department can bill for verifying that the state-required alarms are present and working, and for issuing the compliance permit referenced elsewhere in Chapter Ten as the Smoke and Carbon Monoxide Inspection Permit.

Violations & Fines

Chapter Ten does not set a separate penalty for a missed or failed carbon monoxide inspection; the state law duty to install alarms under G.L. c. 148, Section 26F1/2 carries its own enforcement, and the city's role under Section 13(c) is limited to fee collection, capped between $50 and $500 depending on building size.

Frequently Asked Questions

How much can Worcester charge to inspect my carbon monoxide alarm?
Under Chapter Ten, Section 13(c), the fee is capped at $50 for a single-family home or single unit, $100 for a two-family home, $150 for a building with six or fewer units, and $500 for anything larger, unless it is combined with a smoke detector inspection.
Do I pay twice if the fire department checks both my smoke and CO alarms?
No. Section 13(c) of Chapter Ten specifically waives the extra carbon monoxide charge when the fire department conducts both the smoke detector and carbon monoxide alarm inspections during the same visit, so an owner pays only the one combined inspection fee rather than two separate fees.
Does Worcester's ordinance require me to install a CO detector?
The installation mandate itself comes from state law, G.L. c. 148, Section 26F1/2, not from Worcester's Revised Ordinances. The city's Chapter Ten, Section 13 only sets and caps the fee the fire department can charge to inspect the state-required alarm.

Sources & Official References

Other rules in Worcester

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