1995-2003 Occupation Codes (OCC)

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This page presents the occupational classification system recorded in OCC from 1995-2003 that was informed by the 1995 revised Standard Occupational Classification. The page shows each occupation category and its corresponding OCC code. In addition to these contemporary systems, IPUMS NHIS codes all survey years into the 1995 revised Standard Occupational Classification scheme, recording them in the variable OCC1995.

Occupation Categories

Code Occupation Title
Not in Universe
00 Not in universe
Executive, Administrative, and Managerial Occupations
01 Officials and administrators, public administration
02 Managers and administrators, except public administration
03 Management related occupations
Professional Specialty Occupations
04 Engineers
05 Architects and surveyors
06 Natural mathematical and computer scientists
07 Health diagnosing occupations
08 Health assessment and treating occupations
09 Teachers, librarians, and counselors
10 Writers, artists, entertainers, and athletes
11 Other professional specialty occupations
Technicians and Related Support Occupations
12 Health technologists and technicians
13 Technologists and technicians except health
Sales Occupations
14 Supervisors and proprietors
15 Sales representatives, commodities and finance
16 Other sales
Administrative Support Occupations, Including Clerical
17 Computer equipment operators
18 Secretaries, stenographers, and typists
19 Financial records processing occupations
20 Mail and message distributing
21 Other administrative support
Service Occupations
22 Private household occupations
23 Police and firefighters
24 Other protective service occupations
25 Food service
26 Health service
27 Cleaning and building service
28 Personal service
Farming, Forestry, and Fishing Occupations
29 Farm operators and managers
30 Farm workers and other agricultural workers
31 Forestry and fishing occupations
Precision Production, Craft, and Repair Occupations
32 Mechanics and repairers
33 Construction and extractive trades
34 Precision production occupations
Operators, Fabricators, and Laborers
35 Machine operators and tenderers, except precision
36 Fabricators, assemblers, inspectors, and samplers
Transportation and Material Moving Occupations
37 Motor vehicle operators
38 Other transportation, except motor vehicles
39 Material moving equipment operators
Handlers, Equipment Cleaners, Helpers, and Laborers
40 Construction laborers
41 Freight, stock, and material handlers
Unknown Occupation
95 Unknown occupation, including persons who never worked (1995-1996 only)
96 Refused, classified, etc. (1995-1996 only)
97 Refused, classified, etc. (1997-2003 only)
98 Not ascertained (1997-2003 only)
99 Don't know (1997-2003 only)
50 Military (1997-2003 only)
98 Military (1995-1996 only)

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