6000 Series MEDICINE AND DENTISTRY. Includes subjects relating to medical and dental matters such as physical fitness, general medicine, special or preventive medicine, dentistry, and medical equipment supplies.
7000 Series FINANCIAL MANAGEMENT. Includes subjects relating to the financial administration of the Department of the Navy, including budgeting, disbursing, accounting, auditing, contract auditing, industrial and other special financing matters, and statistical reporting.
8000 Series ORDNANCE MATERIAL. Includes subjects relating to all types of ordnance material and weapons, including ammunition and explosives, guided missiles, nuclear weapons, fire control and optics, combat vehicles, underwater ordnance materials, and miscellaneous ordnance equipment.
9000 Series SHIPS DESIGN AND MATERIAL. Includes subjects relating to such matters as the design and characteristics of ships, and to ships material and equipment.
10000 Series GENERAL MATERIAL. Includes subjects relating to general categories of materials not included in the specialized material groups. It includes audiovisual/graphic arts/photographic/television/video equipment and accessories, general machinery and tools, personnel (materials), and miscellaneous categories.
11000 Series FACILITIES AND ACTIVITIES ASHORE. Includes subjects relating to ashore structures and facilities, fleet facilities, transportation facilities, heavy equipment, utilities and services, and other similar subjects.
12000 Series CIVILIAN PERSONNEL. Includes subjects relating solely to the administration of civilian personnel. (Military personnel subjects are included in the 1000 series. General personnel subjects relating to both military and civilian personnel are included in the 5000 series).
13000 Series AERONAUTICAL AND ASTRONAUTICAL MATERIAL. Includes subjects relating to aeronautical and astronautical materials, including parts, accessories, and instruments; special devices; armament; serological equipment, weapons systems, types of aircraft; and astronautic vehicles.
16000 Series COAST GUARD MISSIONS. Includes subjects relating solely to the administration and mission of the Coast Guard. N O T TO BE USED BY NAVY OR MARINE CORPS ACTIVITIES.
The 13 major subject groups are broken down into primary, secondary, and tertiary subdivisions. (Activities may be further subdivided by the addition of a slant (/) and arbitrary symbols.)
PRIMARY SUBJECTS are designated by the last three digits (the hundreds group) of the code number.
SECONDARY SUBJECTS are designated by the last two digits (the tens group).
TERTIARY SUBJECTS are designated by the last digit.
Here are some examples:
The security of the United States in general and of naval operations in particular depends in part upon the success attained in safeguarding classified information. It is of paramount importance that all who engage in administering security preserve a balanced and commonsense outlook toward the subject. The goal of the security education program is to impress upon all personnel fundamental habits of security to the point that proper discretion is automatically exercised in the discharge of their duties and security of classified information becomes natural element of every task.