The initial attack line is the backbone of every fireground operation and will have a greater impact on the outcome of a fire than any other fireground operation. As the first line goes so does the fire, so we must get it right. What is your target flow rate? How do you determine your hoseline selection based on the buildings and conditions that you encounter? How do you estimate the stretch? This class will discuss tactical decision making for fires in single-family dwellings, multiple-family dwellings, commercial and industrial buildings, standpipe-equipped buildings, attics, cocklofts, and basements.