Casual Factor

DOE-HDBK-XXXX-2005

06/30/2005

CAUSAL FACTOR. An event or condition in the accident sequence necessary and

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sufficient to produce or contribute to the unwanted result. Causal factors fall into three

categories: direct cause, contribution cause, and root cause. [DOE G 225.1A-1]

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CAUSE. Anything that contributes to an accident or incident. In an investigation, the use

of the word "cause" as a singular term should be avoided. It is preferable to use it in the

plural sense, such as "causal factors," rather than identifying "the cause." [DOE G

225.1A-1]

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CEILING LIMIT. The concentration in the employee's breathing zone that shall not be

exceeded at any time during any part of the working day. For airborne contaminants, if

instantaneous monitoring is not feasible, then the ceiling shall be assessed as a 15-minute

time-weighted average exposure that shall not be exceeded at any time during the working

day. [DOE O 5480.10A (Draft)]

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CERTIFICATION. The process by which contractor facility management provides

written endorsement of the satisfactory achievement of qualification of a person for a

position. [DOE O 5480.30]

CHAIN OF CUSTODY. The process of documenting, controlling, securing, and

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accounting for physical possession of evidence, from initial collection through final

disposition. [DOE G 225.1A-1]

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CHANGE. Stress on a system that was previously in a state of equilibrium, or anything

that disturbs the planned or normal functioning of a system. [DOE G 225.1A-1]

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CHANGE ANALYSIS. An analytical technique used for accident investigations, wherein

accident-free reference bases are established, and changes relevant to accident causes and

situations are systematically identified. In change analysis, all changes are considered,

including those initially considered trivial or obscure. [DOE G 225.1A-1]

CHANGE CONTROL. A process that ensures all changes are properly identified,

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reviewed, approved, implemented, tested, and documented. [DOE-STD-1073-2003] [DOE

G 450.4-1B]

CHEMICAL PROCESSING. Those activities or operations that involve the production,

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use, storage, processing, and/or disposal of caustic, toxic, or volatile chemicals in liquid,

gaseous, particulate, powder, or solid states. [EH62dd1]

DRAFT