This report provides an initial review of the hazard potential of COGEMA’s La Hague site. Here, the word “hazard” refers to unplanned injury to workers or members of the public, or unplanned damage to the environment. The report summarizes operations at the La Hague site and COGEMA’s proposed changes to those operations. Then, the report sets forth the requirements for a thorough analysis of La Hague’s hazard potential, and contrasts those requirements with the present base of information about La Hague’s hazards. Finally, the report provides a preliminary identification of the major sources of hazard at La Hague.