The 2016 edition of NFPA 72®, National Fire Alarm and Signaling Code, is up for adoption at this year’s NFPA Technical Meeting in Chicago later this month. Three of the proposed changes to the code will have a major impact on the design and installation of fire alarm and mass notification systems, says Wayne Moore, vice-president at the consulting firm of Jensen Hughes. These changes include the use of non-listed fire alarm speakers, the use of existing computer networks to connect fire alarm systems, and the requirement of 520 Hz audible appliances in sleeping areas. Each has the potential to...