Janury 1, 2015 NEW MASSACHUSETTS FIRE CODE

PLEASE NOTE:
 
13.7.2.1.5 Unless otherwise recommended by the manufacturer's published instructions, single- and multiple-station smoke alarms installed in one and two family dwellings shall be replaced whent hey fail to respond to operability tests, but shall not remain in service longer than 10 years from the date of manufacture. Where alarms have exceeded the manufacturer's listed service life they shall be replaced.