Supporting technical information which includes preliminary reports, notes and working papers, computer printouts, draft copies of papers used by technical writers and any other preliminary or draft copies. Destroy when 5 years old. Preliminary sketches, drawings, specifications and photographs. Destroy when 5 years old. Destroy when 5 years old.
Earlier disposal is authorized when approved after review.
Evaluated or summarized data resulting from study of raw data including memoranda, graphs, tabulations, reports, log books, and related papers. Review 10 years after cut-off for possible permanent retention. Controlled notebooks issued to researchers specifically to document research results. These notebooks contain technical and scientific data accumulated from the conduct of research and are often not duplicated in technical reports or project case files. These notebooks frequently contain data essential in establishing patent or invention rights.