even though none of the above conditions are met. Such special circumstances could
include (1) the presence of large amounts of material that were excluded from the
inventory due to their enclosure in Department of Transportation (DOT) Type B shipping
containers or sealed sources, per recommendation by DOE (Reference 1), but which may
be subject to release in an aircraft crash; (2) the presence of large quantities of other
materials which are known to pose a hazard but are not covered under conditions b and c;
(3) the close proximity of an unusually large number of members of the public; (4) the
presence of environmental resources that are particularly susceptible to the materials in
the facility (e.g., endangered species) or that can spread contaminants over long
distances (e.g., waterways); or (5) other similar circumstances.
United States Department of Energy. Hazard Categorization and Accident Analysis
Techniques for Compliance with DOE Order 5480.23, Nuclear Safety Analysis
Reports. DOE-STD-1027-92. December 1992.
Title 29 Code of Federal Regulations, Part 1910, Section 119, Process Safety
Management of Highly Hazardous Chemicals. 1994.
Title 40 Code of Federal Regulations, Part 68. 1996.