Deaccessioning

The formal, documented procedure by which an accessioned object is permanently removed from a collection's holdings, encompassing review against acquisition terms and policies, assessment of legal and ethical constraints, decision‑making by authorized bodies, documentation of action taken (transfer, sale, restitution, destruction, or other disposition) and recording of any conditions governing the

The formal, documented process by which a library, archive, or other collecting institution permanently removes an accessioned item from its institutional collection inventory and determines its disposition (for example: retention off‑site, transfer, donation, sale, recycling, or destruction) according to established policy, legal constraints, and provenance or donor conditions.