![](/images/new-backgrounds/1055717/55717135x1.webp)
Appendix A: Special Requirements For
In The Commonwealth of Massachusetts
IMPORTANT
The Commonwealth of Massachusetts requires compliance with regulation 248 CMR 4.00 and 5.00 for installation of
1.For
a.If there is not already one present, on each floor level where there are bedroom(s), a carbon monoxide detector and alarm shall be placed in the living area outside the bedroom(s). The carbon monoxide detector shall comply with NFPA 720 (2005 Edition).
b.A carbon monoxide detector shall be located in the room that houses the appliance or equipment and shall:
i.Be powered by the same electrical circuit as the appliance or equipment such that only one service switch services both the appliance and the carbon monoxide detector;
ii.Have battery
iii.Meet ANSI/UL 2034 Standards and comply with NFPA 720 (2005 Edition); and
iv.Have been approved and listed by a Nationally Recognized Testing Laboratory as recognized under 527 CMR.
c.A
d.A metal or plastic identification plate shall be mounted at the exterior of the building, four feet directly above the location of the vent terminal. The plate shall be of sufficient size to be easily read from a distance of eight feet away, and read “Gas Vent Directly Below”.
2.For
a.If there is not already one present, on each floor level where there are bedroom(s), a carbon monoxide detector and alarm shall be placed in the living area outside the bedroom(s). The carbon monoxide detector shall comply with NFPA 720 (2005 Edition).
b.A carbon monoxide detector shall :
i.Be located in the room that houses the appliance or equipment
ii.Be either
iii.Comply with NFPA 720 (2005 Edition)
c.A
66