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This report focuses on the residential fire ground experiments. For these experiments, a 2000’, two-story residential structure was designed and built at Montgomery County Public Safety Training Academy in Rockville MD. Fire crews from Montgomery County, MD and Fairfax Co. VA were deployed in response to live burns within this facility. In addition to varying the arrival times of the first and subsequent fire apparatus, crew size was varied from two to five person staffing. Each deployment performed a series of twenty-two timed tasks, while the thermal and toxic environment inside the structure was measured. Results presented in this report quantify the effectiveness of crew size, first-due engine arrival time and apparatus arrival stagger on the duration and time to completion of key fire ground tasks.