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![handle is hein.jfk/jfkarch83724 and id is 1 raw text is: 104-10213-10202 2023 RELEASE UNDER THE PRESIDENT JOHN F. KENNEDY ASSASSINATION RECORDS ACT OF 1992
SECRET
I 1
-. OIIB 70-1-1
CHI.W1'Elt III
15 %rmember 1974
ANNEX B
THE 201 SYSTEM
Rescission: Annex B of Chapter III, CSIIB 70-1-1, 27 October 1966
1. INTRODUCTION
The 201 system provides a method for identifying a person of specific in-
terest to the Operations Directorate and for controlling and filing all pertinent
information about that person. The system also provides a means for identifying
subjects of 201 files from various categories of information about them and for
producing lisits of 201 personalities according to those c-t'wsories. Only a rela-
tively small number of personalities indexed are of sufficient interest to justify
opening a 201 dossier. These are normally subjects of extensive reporting and
CI investigation, prospective agents and sources, members of groups and organi-
zations of continuing target interest, or subjects on whom a volume of corre-
spondence has accumulated.
2. THE 201 SYSTEM
The principal features of the 201 system are: .
a. The 201 Number a unique number, I.e., 201-1234367, assigned to each
individual in the system to serve as identifying file number for reporting on that
individual.
b. The 201 Dossier: the official file containing the 201 opening form (Form
831) and all biographic reporting on and references to the individual, i.e., per-
sonal history. current status, and prospects.
c. The Master 201 Record: a machine record generated by the opening of
a 201 file. This record produces the master 201 reference for the Main Index and
stores the pertinent information which may later be retrieved for special listings.
d. Main Index Alaster 201 Reference: this reference, printed in reply to an
Index Search Request, is printed as illustrated below. When data are absent
within the record, succeeding data items or lines will be moved up and the ref-
erence consolidated.
23
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