After the security forms had been completed in the rough they were typed by the stenographic pool of the Personnel Department and forwarded to the Los Angeles Atomic Energy Commission Security Branch Office. The above basic procedure was followed in all cases involving "P* approval, "Q" clearance, or "QP" clearance. In case of a "Q" clearance reinstatement, a "Q" emergency clearance, or the submission for a "Q" clearance after a “P" approval had been received, the procedure varied somewhat; but in all cases the personnel security questionnaire, the security acknowledgment, the extract of the Atomic Energy Act of 1946, and the fingerprint card were required to be completed and submitted. CHRONOLOGICAL HISTORY OF CLEARANCE REQUIREMENTS The processing of overseas employees varied considerably, depending on requirements imposed by the AEC, and on conditions at Jobsite at the time of processing. At the commencement of recruiting of overseas employees in January 1949, all were submitted for a "QP" clearance but were permitted to proceed overseas upon the granting of a "P® approval. This approval was based on a check of the local files of the Federal Bureau of Investigation and such police and other files as were available in the Los Angeles area, This "P* approval usually did not require more than a few days' processing time and was therefore operationally advantageous, but it was unsatisfactory from a security standpoint in that the checks covered only records of the Los Angeles area and did not include information which might be on record elsewhere, This shortcoming was evident when reports of full investigations by the FBI on "QP" processings were received, Reports revealed considerable derogatory information concerning men already sent to the Jobsite on the basis of local check ap- provals, In August 1949, it was decided by AEC security officials at .Los Alamos that, except in special cases, no further local check "P" approvals would be granted and that "P" approvals would thereafter be based on checks made of the central files of the FBI in Washington, Checks were to be made of both the fingerprints and the name of the individual. This procedure resulted in a much better security basis for "P" approval but usually required at least 30 days for the granting of the approval, On about September 15, 1949, a directive was received from the Director of Security at Los Alamos that thereafter "QP" submissions for clearance would not be required for new employees unless it was reasonably certain that they would remain at Jobsite beyond November 1, 1950, which was then considered as the limiting date prior to which a "Q" clearance would not be necessary. In compliance with the above directive, a general rule was established by Holmes & Narver to the effect that any employee sent to the Jobsite more than a year prior to the then established limiting 7-6