This General Contracting project consists of the replacement of the existing fire alarm systems in 11 buildings on The Ohio State University’s main campus. The buildings will be occupied during the project construction and the design will incorporate phasing and ‘off-hours’ work by the contractors to minimize the impact on the building occupants and maintain fire alarm protection. The design, scheduling and coordination have been coordinated with OSU Facilities Design and Construction, Fire Shop and Operations. The 11 buildings included: Cockins Hall, Mathematics Building, Agricultural Administration Building, Atwell Hall, Campbell Hall, Denney Hall, Enarson Classroom Building, Electroscience Lab, Sisson Hall, University Hall, and Scott Hall. These building’s fire alarm systems were surveyed, documented and evaluated for efficient replacement with new, current technology, addressable/programmable ADA compliant system. The new systems include a new microprocessor based control panel, new smoke/heat detectors, and new audible/visual notification appliances in all public areas installed per ADA.