This manual is a guide to the most important legal procedures that control imports. It is likely to be of most use to practitioners who are not yet experts in the field, corporate counsel in both domestic and foreign companies whose products are sold across national borders, and students learning about these complicated regulatory laws. Each chapter is written by experienced counsel in Washington, DC - some of whom have inside experience from working in the government agencies that administer the laws they are writing about. The authors have incorporated practical advice - practice comments - in their description of how these laws work. It is the intention of both the authors and editors to supplement the manual with updated material from time to time, which will be available online.