Code of Massachusetts Regulations
780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS
Chapter CHAPTER 51 - MASSACHUSETTS RESIDENTIAL CODE
Chapter 3 - BUILDING PLANNING
Section R301
Subsection 301.1
Subsection 315.4
Current through Register 1543, March 14, 2025
Revise and replace section 315.4 Combination alarms as follows:
315.4 Combination alarms. Combination carbon monoxide and smoke alarms (in compliance with Section 314) shall be permitted to be used in lieu of carbon monoxide alarms, located as in R315.3, provided they are compatible and the smoke alarms take precedence.
Delete the "Exception" to section R315.5 Inter connectivity.
Add a last sentence to section R315.6 Power source as follows:
Alarms may also be part of a low voltage or wireless system with standby power from monitored batteries in accordance with NFPA 72.
Delete Exception #2 from section R315.6 Power source.
