Section R. 408.10995 - MaintenanceRule 995.
(1) All systems shall be maintained in operable condition and tested on a periodic basis to assure reliability and operating condition.(2) Pneumatic- and hydraulic-operated detection systems installed after December 31, 1983, shall be a supervised system.(3) Servicing, maintenance, and testing of detection systems shall be performed by trained persons knowledgeable in the operation and function of the system.Mich. Admin. Code R. 408.10995