</s>104-10051-10170 2025 RELEASE UNDER THE PRESIDENT JOHN F. KENNEDY ASSASSINATION RECORDS ACT OF 1992 SECRET DOHB 70-1-1 CHAPTER III 15 November 1974 ANNEX B THE 301 SYSTEM Recession: Annex B of Chapter III, CSHB 70-11-27 October 1966 1. INTRODUCTION The 301 system provides a method for identifying a person of specific in- interest to the Operations Directorate for controlling and filling all pertinent information to the operations directorate and controlling and filing all pertinent subjects of 301 files from various categories of information about them and for producing lists of 201 personnel according to those categories. Only a relar- opening a 201 dossier. These individuals are normally subject to extensive reporting and operating a 201 database. They are not normally subjects to members of groups of organizations and operating to a number of sources, sources, members of organizations or organizations, and zations of continuing target interests, or subjects of whom a volume of core- sondence has accumulated. 2. THE 201 SYSTEM The principal features of the 201 system are: a. The 301 Number: a unique number, i.e. 1,01,1234567, assigned to each individual. b. The 501 Number: the official file containing the 501 opening form (Form individual). b. the system to serve to identifying file number for reporting on that b. b. The 201 Disaster: the Official file containing a 501 opening Form (Form 181) b. biographical reporting and references to the individual, ie, per- sonal history, current status, and prospects. c. The Master Stat Records, a machine record generated by the opening of a 201 file. The record produces the master 201 reference reference for the Main Index and storefronts. The first record releases the master201 reference for specific reporting and d. Main Index Master Reference refers to the main index and Index Search Request, is printed as illustrated below. When data are absent within the index, succeeding data items or files and will be moved up and the copy. enceence consolidated. 23 SECRET

Summary  
The document details administrative procedures for managing sensitive dossiers (201 files) within the JFK assassination investigation, focusing on internal intelligence operations. It outlines systems such as 301 and 201, which assign unique identifiers to track individuals of interest, maintain biographic records, and enforce operational security protocols. Processes include opening, maintaining, and restricting dossiers using forms like the 501 Opening Form (Form 181) and File Restriction Notice (Form 2021). Machine listings for tracking individuals are described, along with protocols for purging or transferring files between desks. Administrative controls, classification levels, and coordination with Central Files and field stations are emphasized.  

The second summary describes personnel record management within a clandestine services organization, categorizing individuals by numerical identifiers (201/IDN numbers) for operational tracking. Criteria for creating standard and non-standard listings include sorting by alphabetical order, geographic location, occupation, and birth dates. Automated dossier openings are specified for categories such as diplomats, military attaches, intelligence officers, and students from designated countries (e.g., Egypt, Cuba, USSR, Israel). The document highlights the use of identifiers in reporting systems and field operations, with procedures for updating records and requesting new assignments.  

Key People  
- Records Officers  
- Desk Officers  
- Intelligence Staff (ISG/IDF)  
- Headquarters Desks  
- Field Stations  
- Individuals identified by 201 numbers or IDN codes (specific names not provided)  
- Diplomats, military attaches, intelligence officers, and students from specified countries  

Key Locations  
- Central Files  
- Field Stations  
- Headquarters Desks  
- United States  
- Egypt  
- Cuba  
- North Vietnam  
- USSR  
- Israel  
- United Nations offices in New York, Paris, Geneva, Vienna  

Key Events  
- Opening and maintenance of 201 dossiers  
- Transfer of dossier accountability between desks  
- Purging and restriction of sensitive files  
- Creation of machine listings for operational tracking  
- Automated dossier openings for specific categories of individuals (diplomats, military attaches, intelligence officers, students)  
- Assignment and management of 201/IDN numbers for tracking operational interests  
- Procedures for updating records and requesting new assignments  

Key Organizations  
- Operations Directorate (Operations Directorate)  
- Records Management Office (RMO)  
- Intelligence Services Group (ISG)  
- Central Files  
- Department of Personnel Information Requests (IP/S/MRS)  
- Clandestine Services (CS)  
- Royal Canadian Mounted Police (RCMP-SS)  
- Intelligence agencies of the Arab Republic of Egypt (ARE), British M-5/M-6, Irish Military Intelligence Service (IMIS)

JFK Declassified Files

104-10051-10170.pdf

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