Field entry, published 2026-11-03, updated 2026-11-03. Group: Major Group 3: Technicians and associate professionals
What work sits in Major Group 3?
| Major group | Major Group 3: Technicians and associate professionals |
|---|---|
| Skill level | Skill level 3, ISCO-08, ILO |
| Code ladder | General |
Classification only, not a job decision
This page describes how ISCO-08 groups technical and associate work. It does not place any reader in a group, and it does not assign an occupation code to a particular job.
Major Group 3 gathers technical work and associate professional work that needs specialised knowledge and practical skill, without carrying the full professional responsibility found in Major Group 2. Think of laboratory support, health support roles that work alongside clinicians, business support roles that keep finance or sales systems running, legal and social support roles, cultural support roles, and information technology support roles. The group is broad because the same pattern appears in many fields: skilled people who apply established methods, operate complex equipment or systems, support a professional service, and solve problems that recur in recognisable forms.
What pattern links such different fields?
The link is the kind of task, not the industry. Technicians and associate professionals usually work from knowledge of a field plus hands on competence. They may prepare, test, measure, record, maintain, advise within defined limits, or coordinate a process. Their decisions matter, and they often need judgement, but the work is typically framed by standards, protocols, professional guidance, or a design made by someone else. When a task is novel, research led, or carries final professional accountability for diagnosis, design, legal advice, or strategy, the classification logic points elsewhere. That contrast helps explain why Major Group 3 sits between professional work and craft or clerical work, even though daily life in a workplace can blur those edges.
Which families belong inside Major Group 3?
The families follow the field of work, which is the second organising idea in ISCO-08 after skill level. Science and engineering technicians apply scientific and technical knowledge in laboratories, workshops, fieldwork, and production settings. Health associate professionals support health care, including nursing and midwifery support roles, medical and pharmaceutical technicians, and therapeutic support roles. Business and administration associate professionals support finance, sales, purchasing, administration, and related business functions. Legal, social, and religious associate professionals support legal, social welfare, and related services. Information and communications technology technicians install, maintain, and support computer, network, and communications systems. Cultural and related associate work is also present in the wider group through artistic, cultural, and culinary associate roles, where the emphasis is on skilled applied practice rather than original professional authorship or direction.
| Field | Typical contribution in Major Group 3 |
|---|---|
| Science and engineering | Testing, measurement, technical drawing support, and equipment operation |
| Health | Clinical support, technical health procedures, and patient related technical work |
| Business and administration | Financial, sales, and administrative support within established systems |
| Legal and social | Case support, documentation, and service coordination under professional oversight |
| Information technology | Installation, support, and maintenance of systems and networks |
What does field of work add to skill level?
Skill level alone would lump together work that has little in common. A laboratory technician and a sales support associate may both work at skill level 3, but their knowledge, tools, and clients differ completely. Field of work keeps them apart, so statistics can show where technical capacity sits in an economy. It also prevents a misleading reading in which every technician looks interchangeable. Classification asks two questions together: how complex is the work, and in which domain does that complexity live? Both answers shape the placement, and neither answer alone is enough.
What does not place work in Major Group 3?
A job title containing technician, associate, assistant, or specialist does not settle the matter. Titles vary by employer, country, and habit, while ISCO-08 classifies tasks and the skill they require. Work that mainly follows simple routines, uses little specialised knowledge, or needs only short training sits lower in the skill structure. Work that creates new knowledge, makes final professional judgements, or designs a system from first principles sits higher. A workplace hierarchy also does not decide placement on its own. Seniority, pay, and supervision can correlate with skill, but classification looks through them to what the person actually does and what knowledge that doing requires.
How should a reader use this overview?
Use it as a map of a large group, not as a label for a single job. Start with the field that matches the work, then ask whether the tasks apply specialised technical or associate professional knowledge within defined methods and standards. If the answer is yes, Major Group 3 is the neighbourhood to explore further in the ILO structure. If the tasks are mainly original professional work, craft production, or routine support, the neighbouring major groups deserve a closer look. The later guides in this cluster take each family in turn, so the broad picture here can be checked against the detail of science, health, business, legal, social, cultural, and ICT work.
Sources checked
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