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Smoke & CO Detector Requirements

Braintree Fire Department
1 Union Place
Braintree, MA. 02184

Emergency Dial 911

Departmental Hours of Operation:
The fire department is open 24/7/365 days a year
The administrative staff is available Monday through Friday 8:30 a.m. to 4:30 p.m.


Smoke & CO Detectors


Town of Braintree Requirements for Certificate of Compliance for

Smoke and Carbon Monoxide Detectors

If you need a Certificate of Compliance for Smoke and Carbon Monoxide Detectors for a condo or single family home read these guidelines thoroughly and follow all instructions  in order to acquire a certificate.

In order to be compliant with the regulation you will need:

     • smoke detectors 

     • carbon monoxide detectors 

     • house numbers

It is the responsibility of the realtor / homeowner to place the proper detector in the locations required.

It is important that the smoke detectors  and CO detectors be approved by Underwriters Laboratories (UL).  Be sure that the detectors have the UL label on the back of the detectors.

Typical single family residences built before January 1, 1975:

Guide to Massachusetts Smoke & Carbon Monoxide Requirements

In residences not subject to MGL c.148,s.26F(built after January 1975), the smoke detector upgrade is recommended, but is not required by law.  This would be in reference to those properties that have hard wired detection systems.


              Carbon Monoxide Detectors are required as follows: 

For buildings with fossil-fuel burning equipment or enclosed parking areas, the regulations require carbon monoxide detectors on every level of the home and within ten feet of each sleeping area and in habitable portions of attics.  

If your home contains equipment which includes: water heaters, oil or gas furnaces, wood or gas fireplaces, wood pellet stoves, gas clothes dryers, or gas cooking stoves, you will need to follow the CO detector requirements.  Homes with  attached garages will also require CO detectors.       

              *  May be ceiling or wall mounted if CO only detector.  May be either:                   battery powered, AC plug-in with battery backup or hardwired                   with battery backup.

              *  A CO detector must be located  on every level of the                   residence,  including basements and habitable portions                                     of attics but  excluding crawl  spaces.

              A CO detector must be located within the immediate vicinity of                   the sleeping area, not to exceed 10 feet from any bedroom door.

              *  Homes with attached garages will also require CO detectors in                   the home and not in the garage.

General information to complete your Town of Braintree single family home inspection for the purpose of selling a 1 or 2 family home:

When detectors are in place and ready for inspection, call Lt. Richard J. Nigrelli at 781-843-2395 x4005 to schedule an appointment for a single family home smoke and CO detector inspection.  Please allow at least 2 weeks in advance of the closing to schedule the inspection. 

Inspections are done Monday-Friday.  The fee is $75.00 payable by  bank check, money order or realty company checks payable to Town of Braintree

Note: Personal checks and cash is not accepted. 

After a successful inspection for smoke detector, CO detector and house number compliance, the Braintree Fire Department will issue the Certificate of Compliance to bring to your mortgage closure.  Certificates are good for 60 days.

Any questions can be answered by calling 781-843-3602

• It is recommended that smoke detectors be replaced every 10 years. 

• Test your smoke and CO detectors monthly and replace the batteries twice a year.  REMEMBER, when you change the clocks, change the batteries.