- 0000 - Miscellaneous Occupations
- 0100 - Social Science, Psychology, And Welfare
- 0200 - Human Resources Management
- 0300 - General Administrative, Clerical, And Office Services
- 0400 - Biological Sciences
- 0500 - Accounting And Budget
- 0600 - Medical, Hospital, Dental, And Public Health
- 0700 - Veterinary Medical Science
- 0800 - Engineering And Architecture
- 0900 - Legal And Kindred
- 1000 - Information And Arts
- 1100 - Business And Industry
- 1200 - Copyright, Patent, and Trademaek Group
- 1300 - Physical Sciences
- 1400 - Library And Archives
- 1500 - Mathematics And Statistics
- 1600 - Equipment, Facilities, And Services
- 1700 - Education
- 1800 - Investigation
- 1900 - Quality Assurance, Inspection, And Grading
- 2000 - Supply
- 2100 - Transportation
- 2200 - Information Technology