This report summarizes discussions from the 'Homeland Security Workshop on Transport and Disposal of Wastes From Facilities Contaminated With Chemical or Biological Agents.' The workshop was held on May 28-30, 2003, in Cincinnati, Ohio, and its objectives were to: Document the current understanding of the challenges faced when handling, storing, transporting, and disposing of wastes from public and private facilities contaminated with chemical and biological agents. Identify research needs and opportunities for improving coordination between federal, state, and local government agencies and other stakeholders in order to fill gaps in the current understanding of these waste management challenges. This initial report summarizes discussions on the following seven topics: classes of chemical and biological agents; detection; effectiveness of decontamination; triaging of wastes; handling, storage, and transport of wastes; landfilling; and incineration. For each topic, this initial report outlines the current state of knowledge, identifies associated research needs, and lists action items identified during the discussions. The technical content of this report is based entirely on discussions at the workshop.