Standard Occupational Classification (SOC) 1991
- J - Occupations Unique to Processing, Manufacturing and Utilities
- J1 - Machine Operators in Manufacturing
- J19 - Machining, Metalworking, Woodworking and Related Machine Operators
- J191 - Machining Tool Operators
- J192 - Forging Machine Operators
- J193 - Woodworking Machine Operators
- J194 - Metalworking Machine Operators
- J195 - Welders and Soldering Machine Operators
- J196 - Other Metal Products Machine Operators
- J197 - Other Products Machine Operators
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