Knowledge of principles, concepts, and methodologies requisite to preventive conservation, e.g., chemistry, material technology and deterioration, and art historical and technological understanding: and of the practical or craft skills to comprehend considerations in the examination and conservation treatment of museum collections, sufficient to assess museum collections environments, identify preservation risks, and evaluate preventive conservation approaches and research priorities. Knowledge of a range of conservation technologies (e.g., cleaning, mending, consolidation, wet cleaning, replacement, coating, supporting, mounting, and rehousing) and of technical and scientific research procedures, sufficient to evaluate conservation practices, develop and assess pilot projects, and determine the applicability of research findings to museum collection environments.