How many major numerical SSIC groups are there?

There are 13 major numerical Standard Subject Identification Code (SSIC) groups. The SSIC system is used by the Department of the Navy to organize and categorize documents and correspondence. Each group represents a different category of subjects pertinent to naval operations. The organization of SSIC into 13 groups simplifies the retrieval and management of information by creating a structured approach to documentation.

The twelve SSIC groups that follow the numerical designations encompass a wide range of subjects, from administrative matters to operations and training. This system allows for efficient archiving and identification of materials, ensuring that naval personnel can quickly find the information they need. Understanding the structure and purpose of the SSIC groups is crucial for anyone working within the naval documentation process, including Yeomen, who are responsible for maintaining records and providing administrative support.