20
COMMONWEALTH OF MASSACHUSETTS
INSTALLATION OF CARBON MONOXIDE DETECTORS
APPROVED CARBON MONOXIDE DETECTORS
SIGNAGE
“GAS VENT DIRECTLY BELOW. KEEP
CLEAR OF ALL OBSTRUCTIONS.”
INSTALLATION REQUIREMENTS - COMMONWEALTH OF MASSACHUSETTS
INSPECTION
EXEMPTIONS
MANUFACTURER REQUIREMENTS - GAS
EQUIPMENT VENTING SYSTEM PROVIDED
MANUFACTURER REQUIREMENTS - GAS
EQUIPMENT VENTING SYSTEM NOT PROVIDED