Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. [protective processes and techniques]

Anotations

Scope note:

The action or process of conserving for the preservation of existence, state, life, health, safeguarding from destructive influences, natural decay, or waste. May apply to conserving a building, object, environment, species, or other thing.