“The term ‘visual alert system’ means a visual warning device or system that, when activated by or in conjunction with an audible smoke detector and warning system, provides a light signal sufficient to warn a deaf or hearing-impaired person of the presence of fire or smoke. The term ‘visual alert system’ shall include a visual warning system that has multiple functions if 1 of the functions of the system is to warn a deaf or hearing-impaired person of the presence of fire or smoke.”
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