Building Security Act of 2003 - Requires the Director of the National Institute of Standards and Technology to establish a research and development program to provide for improved building and fire codes, standards, and practices. Requires the Director to: (1) work with industry, trade associations, and professional societies to research construction, material, and equipment standards and practices to reduce the impact of extreme threats to the safety of buildings, their occupants, and emergency responders and to study the best methods (such as tax incentives or grants) for ensuring full implementation of and compliance with such standards and practices; and (2) oversee a program for dissemination and implementation of such practices and standards.
Directs the Secretary of Homeland Security to establish a Private Security Industry Task Force to: (1) examine the limitations in training, screening, standard-setting, retention, and oversight practice in the private security industry; and (2) develop structural guidelines and standards of quality for the industry and determine the best way to help States implement them.