Section R. 408.10981 - Installation and maintenanceRule 981.
(1) A local fire alarm system installed or that portion of the system modified after December 31, 1983, shall be installed, modified, and maintained as prescribed in N.F.P.A. standard #72A-1979, standard for the "Installation, Maintenance and Use of Local Protective Signaling Systems for Watchmen, Fire Alarm and Supervisory Service," as adopted by reference in R 408.10999(j).(2) Where the protected premises has an emergency power supply, the local fire alarm system shall have a secondary source of power.Mich. Admin. Code R. 408.10981