DOT CATEGORIES

1st Digit of DOT Number	Category	Definition
0/1	PROFESSIONAL, TECHNICAL, AND MANAGERIAL OCCUPATIONS	This category includes occupations concerned with the theoretical or practical aspects of such fields of human endeavor as art, science, engineering, education, medicine, law, business relations, and administrative, managerial, and technical work. Most of these occupations require substantial educational preparation (usually at the university, junior college, or technical institute level).
2	CLERICAL AND SALES OCCUPATIONS	This category encompasses two occupational fields: Clerical (Divisions 20 - 24) which includes occupations concerned with compiling, recording, communicating, computing, and otherwise systematizing data; Sales (Divisions 25 - 29) which includes occupations concerned with influencing customers in favor of a commodity or service. Includes occupations closely identified with sales transactions even though they do not involve actual participation. Excluded from this category are clerical occupations primarily associated with a manufacturing process.
3	SERVICE OCCUPATIONS	This category includes occupations concerned with performing tasks in and around private households; serving individuals in institutions and in commercial and other establishments; and protecting the public against crime, fire, accidents, and acts of war.
4	AGRICULTURAL, FISHERY, FORESTRY, AND RELATED OCCUPATIONS	This category includes occupations concerned with propagating, growing, caring for, and gathering plant and animal life and products. Also included are occupations concerned with providing related support services; logging timber tracts; catching, hunting, and trapping animal life; and caring for parks, gardens, and grounds. Excluded are occupations requiring a primary knowledge or involvement with technologies, such as processing, packaging, and stock checking, regardless of their industry designation. Managerial occupations in agriculture, fishery, and forestry are included in Group 180.
5	PROCESSING OCCUPATIONS	This category includes occupations concerned with refining, mixing, compounding, chemically treating, heat treating, or similarly working materials and products. Knowledge of a process and adherence to formulas or other specifications are required in some degree. Vats, stills, ovens, furnaces, mixing machines, crushers, grinders, and related equipment or machines are usually involved.
6	MACHINE TRADES OCCUPATIONS	This category includes occupations concerned with the operation of machines that cut, bore, mill, abrade, print, and similarly work such materials as metal, paper, wood, plastics, and stone. A worker's relationship to the machine is of primary importance. The more complicated jobs require an understanding of machine functions, blueprint reading, making mathematical computations, and exercising judgment to attain conformance to specifications. In less complicated jobs, eye and hand coordination may be the most significant factor. Installation, assembly, repair, and maintenance of machines and mechanical equipment and weaving, knitting, spinning, and similarly working textiles are included.
7	BENCHWORK OCCUPATIONS	This category includes occupations concerned with the use of body members, handtools, and bench machines to fit, grind, carve, mold, paint, sew, assemble, inspect, repair, and similarly work relatively small objects and materials, such as jewelry, phonographs, light bulbs, musical instruments, tires, footwear, pottery, and garments. The work is usually performed at a set position in a mill, plant, or shop, at a bench, worktable, or conveyor. At the more complex levels, workers frequently read blueprints, follow patterns, use a variety of handtools, and assume responsibility for meeting standards. Workers at the less complex levels are required to follow standardized procedures.
8	STRUCTURAL WORK OCCUPATIONS	This category includes occupations concerned with fabricating, erecting, installing, paving, painting, repairing, and similarly working structures or structural parts, such as bridges, buildings, roads, transportation equipment frames and structures, cables, girders, plates, and frames. The work generally occurs outside a factory or shop environment, except for factory production line occupations concerned with fabricating, installing, erecting, or repairing structures. Tools used are handtools or portable power tools, and such materials as wood, metal, concrete, glass, and clay are involved. Stationary machines are frequently used in structural work occupations, but the worker's relationship to machines is usually secondary in importance as compared to use of handtools and portable power tools. Workers are frequently required to have a knowledge of the materials with which they work, e.g., stresses, strains, durability, and resistance to weather.
9	MISCELLANEOUS OCCUPATIONS	This category includes occupations concerned with transportation services; packaging and warehousing; utilities; amusement, recreation, and motion picture services; mining; graphic arts; and various miscellaneous activities. Occupations concerned with activities listed above and involving extensive record keeping are found in Category 2. Occupations concerned with hoisting and conveying of logs are included in this category. Other logging occupations are found in Category 4.