An Assessor is a person qualified to assess candidates. An Assessor must be competent in the role being assessed and competent in the practice of assessing.  Typically an Assessor is required to hold an Assessor Award, which is an NVQ Level 3 Award from City and Guilds. This award was previously called an A1 and D32/D33.

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Assessor (Wikipedia)

An assessor may be: