Standardized terminology descriptive of the action. Refers to any action taken with respect to the described materials (e.g., accession, appraise, authenticate, classify, copy, describe, exhibit, lend, organize, microfilm, preserve, reference, schedule, solicit, survey, transfer, etc.). For preservation activities, this subfield contains a description of the action (e.g., condition reviewed, queued for preservation, preservation interim treatment, preservation completed). Not private.