|1st Digit of
||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).
||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.
||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.
||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
||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.
||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
||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
||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
||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.