This memorandum from the Minnesota State Fire Marshal outlines updated Minnesota State Fire Code (MSFC) sprinkler requirements effective March 31, 2020. The update details numerous changes and clarifications, including exemptions for certain small spaces and swimming pools, new requirements for tamper alarms and exterior flow alarms, and modified standpipe specifications. The rationale behind each change is provided, emphasizing factors like fire loss history and the effectiveness of sprinkler systems. The document aims to inform fire protection contractors about these crucial updates to ensure compliance.

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