Since the terrorist attack on USS COLE (DDG 67) and more recently the attacks on New York City and the Pentagon, Antiterrorism/Force Protection (AT/FP) requirements have increased dramatically throughout the Department of Defense (DOD). As these requirements escalate in scope and number, so do the costs of meeting them. In the Navy, ships are bearing a portion of these costs out of their operations funding. Type Commanders (TYCOMs) fund the operations of all ships and squadrons under their command. In order to have a firm grasp on how these new AT/FP requirements will affect them financially, they must be able to forecast the costs related to them and make appropriate adjustments to their existing ships operations funding model. Acquiring a better grasp on the fiscal impacts of these new requirements will allow Type Commanders to more effectively budget for them in the future. This thesis provides a shipboard AT/FP cost estimation model to aid in forecasting costs associated with these activities.http://archive.org/details/theimpactofincre109456102US Navy (USN) author