In addition to the individual reference coordinates on the disk labels, a complete hard copy list will be maintained. A running catalog will be maintained on incomplete disks, and a final catalog printed for complete, updated, verified disks, from which the WRITE tab will be removed. Tapes containing verified Am and Pu data or final estimates will also be write-protected. Procedures documentation will also be kept current, and running commentary made in the daily log until proceduresare well-established. The owner's manuals for the H-P equipment list required and recommended maintenance on the calculator and peripherals. Tapes and disks will be stored properly and safely, away from strong magnetic fields. External tape and disk labels will indicate clearly, with indelible ink (use only felt tip on disks), the tape or disk contents. A-3-4