The 2008 edition of NFPA 1, Uniform Fire Code, covers requirements for existing buildings, while the 2008 edition of NFPA 70, National Electrical Code (NEC), and the 2007 edition of NFPA 72, National Fire Alarm Code, cover wiring for fire alarm systems and fire alarm system testing and maintenance, respectively. [...] Paragraph 10.4.1.2.2 requires that changes to all control units connected to, or controlled by, the system executive software undergo a 10 percent functional test of the system and that at least one device on each input and output circuit be tested to verify critical system functions.
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