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PART VIll
BUILDING OPERATION
The National Archives and Records Service utilizes Buildings A and C of the Suitland nitrate vault complex to store and prepare for reproduction cellulose nitrate motion picture film. The vault complex, including Building B which houses nitrate film held by the Library of Congress, is surrounded by a security fence, and access is restricted during nonbusiness hours with gates which are opened by a Federal Protective Service officer each Monday through Friday at 6 a. m. and locked at 4:45 p. m. each evening. Working hours for the four NARS film inspectors are from 8 a.m. to 4:30 p.m.
A register of persons entering and leaving Buildings A and C is maintained at the entrances to these buildings. Copies of the pages surviving from the Building A register are in Appendix F.
The mission of the NARS staff is to store, preserve, inspect, and prepare for duplication the nitrate motion picture film held by NARS. The staff regularly removes cans of film from vault storage, inspects the film, splices film segments together and performs other activities in the workroom and vault areas. These activities are required before the film can be converted to safety film for preservation or duplication in response to researcher requests. Established procedures require that when anyone is working in a vault, the vault door is to be kept open and the fire door leading to the vault area is to be kept open. The doors are to be closed at all other times. Other procedures governing the safe handling of nitrate film and operations of .the vaults are found in a memorandum dated October 17, 1977, included as Appendix G.
In accordance with this memorandum temperature readings are taken in each vault each workday when the outside temperature is above 55°(F). A sample of the readings for the vaults in Building A is found in Appendix I,
On the morning of December 7, 1978, the first NARS employee arrived at 8 a. m. Upon his arrival he noticed that two workmen of the Edward Kocharian Company were in the complex waiting for