classified  or  publication-type  directives  are  filed elsewhere) are maintained. These are maintained in standard three-ring or post binders or in automated equipment with equivalent search capabilities. Included are copies of message directives, filed in the same reamer as other directives. Checklists are reviewed to ensure the currency of directives maintained by the organization, and a complete set of all applicable directives  is  obtained  upon  activation  or commissioning. • Annual numerical checklists, quarterly additions and deletions, and annual alphabetical subject indexes, as necessary, of all currently effective organizational instructions are issued. • Each   instruction   originated   within   the organization that is within 6 months of its cancellation or revision requirement date is routed to the originator for initiation of revisions, extension, or cancellation. Preparing Directives Executives use directives as the primary means for transmitting  policies  and  orders  of  executives  to subordinates. Therefore, these directives must be clear, concise, and easily understood. Directives that are poorly written or untidy in appearance are difficult to read and do not receive the attention and study they require. Careful preparation will result in increased readability and understanding by recipients and greater efficiency within the organization. The Directives Issuance System  prescribes  a standard  format  for  directives.  Because  of  the uniformity  the  system  provides,  it  permits  easy reference to specific items of information. STANDARD SUBJECT IDENTIFICATION CODES The Department of the Navy File Maintenance Procedures and Standard Subject Identification Codes (SSIC) SECNAVINST 5210.11D, outlines the process for segregating and filing directives. It explains the standard system of numbers and letter symbols used throughout the Navy to categorize; subject classify; and identify directives, forms, and reports. Standard subject identification codes (SSICs) also provide a standard system for setting up files. These code numbers cover most subjects found in general correspondence and other files and reflect the functions and major organizational components of the Navy. SSICs are required on all Navy directives. They are also required on letters, messages, forms, and reports. The use of the SSICs provides away for filing directives and other documents consistently and retrieving them quickly. The Navy’s SSIC system is broken down into 13 major subject groups. These major subject groups are in turn broken down into primary, secondary, and tertiary subdivisions. Each group is identified by a four- or five-digit numeric code. Primary groups are designated by the last three digits (hundreds) of the code number. Secondary groups are further breakdowns of the primary groups and are identified by the last two digits (tens) of the code number. Tertiary groups consist of the last digit (units) of a secondary group. Examples of primary, secondary, and tertiary numerical subject groups are as follows: Major Subject 5000 General Administration and Management Primary 5200 Management Programs and Techniques Secondary 5210  Records  Management Tertiary 5211  Filing,  Maintenance Protection, Retrieval, and Privacy Act Systems Some subject groups are not subdivided below the primary group level. Other groups are divided into many secondary and tertiary subjects, depending on the scope and complexity of the major subject. Assigning SSICs When you create a directive or any other document, include the SSIC that most closely describes the directive’s subject. When you assign the code, consider the subject, its purpose or significance, and how similar documents are requested and the code is used on similar documents. The following is a listing of the major subject groups for SSICs (a complete listing of SSICs can be found in SECNAVINST 5210.11D): 1000 Military  Personnel.  Includes  subjects relating solely to the administration of military personnel, (General personnel subjects pertaining to both civilian and military personnel are covered in the 5000 series.) 8-4