CHDS State/Local / Approved for public release, distribution is unlimited / The planning methodologies used today by most U.S. fire departments are excellent for traditional missions, but wholly inadequate for the threats posed by terrorism. Planning in the fire service and the rest of the first responder community historically has relied on a one-dimensional approach that uses a scenario-based planning (SBP) methodology. This thesis argues that the fire service and others in the first responder community will be able to contribute to homeland security missions much more effectively, and efficiently, by switching to specially adapted versions of capabilities-based planning. This thesis proposes a new integrated planning methodology that combines the planning strengths of scenariobased planning, threat-based planning, and capabilities-based planning. The new method identifies capabilities that could be used to manage and mitigate the consequences of the different types of contingencies within the various response spectrums. It allows an organization to perform analysis and efficiency studies to evaluate the different spectrums of contingencies against existing capabilities and create a menu of capabilities necessary for the first responder to respond to all its missions, including immediate threats and terrorism, in the most efficient and cost-effective manner. / Battalion Chief, Fire Department City of New York