the relative importance to safety, safeguards, and security; (2) the magnitude of any hazard
involved; (3) the life cycle stage of a facility; (4) the programmatic mission of a facility; (5)
the particular characteristics of a facility; and (6) any other relevant factor.
(10 CFR 830.3)
3.6 Hazard means a source of danger (i.e., material, energy source, or operation) with the
potential to cause illness, injury, or death to personnel or damage to a facility or to the
environment (without regard for the likelihood or credibility of accident scenarios or
consequence mitigation). (10 CFR 830.3)
3.7 Hazard Classes Non-nuclear facilities will be categorized as high, moderate, or low
hazards based on the following:
a. High - hazards with a potential for onsite and offsite impacts to large numbers of
persons or for major impacts to the environment,
b. Moderate - hazards which present considerable potential onsite impacts to people or
the environment, but at most only minor offsite impacts, and
c. Low - hazards which present minor onsite and negligible offsite impacts to people
and the environment. (DOE 5481.1B)
3.8 Hazard Categories The consequences of unmitigated releases of radioactive and/or
hazardous material are evaluated as required by DOE 5480.23 and classified by the
following hazard categories:
a. Category 1.
The hazard analysis shows the potential for significant offsite
b. Category 2.
The hazard analysis shows the potential for significant onsite
c. Category 3.
The hazard analysis shows the potential for only significant localized
consequences. (DOE 5480.23)
3.9 Hazardous Materials are those materials that are toxic, explosive, flammable,
corrosive, or otherwise physically or biologically threatening to health. (10 CFR 830.3)