Written declarations have been identified as one of the most useful tools in determining a nation's potential for a biological warfare capability. Declarations are defined as mandatory reports (provided on a periodic basis) that describe various aspects of a state's biological infrastructure, including both academic and governmental programs. Specifically included are descriptions of facilities, summaries of research projects, and other information considered relevant to making an evaluation of that country's capabilities. Notifications of specific events of interest are also considered as part of the required declaration. As part of the confidence-building measures (CBMs) of the Biological and Toxin Weapons Convention (BWC), between 25 and 30 of the State Parties have been providing written declarations for a number of years. With specific regard to the Iraqi experience, the government of Iraq was required (under the auspices of United Nations Security Council Resolution 687) to provide specific declarations about any and all facilities potentially associated with their biological warfare program. UNSCOM inspectors have the responsibility of verifying the accuracy of the information provided by Iraq in declarations.