0-0. Architects, Engineers and Surveyors
0-1. Chemists, Physicians, Geologists and Other Physical Scientists
0-2. Biologists, Veterinarians, Agronomists and Related Scientists
0-3. Physicians, Surgeons and Dentists
0-4. Nurses and Midwives
0-5. Professional Medical Workers Not Elsewhere Classified and Medical Technicians
0-6. Teachers
0-7. Clergy and Related Members of Religious Orders
0-8. Jurists
0-9. Artists, Writers and Related Workers
0-X. Draughtsmen, and Science and Engineering Technicians Not Elsewhere Classified
0-Y. Other Professional, Technical and Related Workers

1-0. Administrators and Executive Officials, Government
1-1. Directors, Managers and Working Proprietors

2-0. Book-keepers and Cashiers.
2-1. Stenographers and Typists
2-9. Other Clerical Workers

3-0. Working Proprietors, Wholesale and Retail Trade
3-1. Insurance and Real-Estate Salesmen, Salesmen of Securities and Services, and Auctioneers
3-2. Commercial Travellers and Manufacturers' Agents
3-3. Salesmen, Shop Assistants and Related Workers

4-0. Farmers and Farm Managers
4-1. Farm Workers Not Elsewhere Classified
4-2. Hunters and Related Workers
4-3. Fishermen and Related Workers
4-4. Loggers and Other Forestry Workers

5-0. Miners and Quarrymen
5-1. Well Drillers and Related Workers
5-2. Mineral Treaters
5-9. Miners, Quarrymen and Related Workers Not Elsewhere Classified

6-0. Deck Officers, Engineer Officers and Pilots, Ship
6-1. Deck and Engine-Room Ratings (Ship), Barge Crews and Boatmen
6-2. Aircraft Pilots, Navigators and Flight Engineers
6-3. Drivers and Firemen, Railway Engine
6-4. Drivers, Road Transport
6-5. Conductors and Brakemen, Railway
6-6. Inspectors, Supervisors, Traffic Controllers and Despatchers, Transport
6-7. Telephone, Telegraph and Related Telecommunication Operators
6-8. Postmen and Messengers
6-9. Workers in Transport and Communication Occupations Not Elsewhere Classified

7-0. Spinners, Weavers, Knitters, Dyers and Related Workers
7-1. Tailors, Cutters, Furriers and Related Workers
7-2. Leather Cutters, Lasters and Sewers (except Gloves and Garments) and Related Workers
7-3. Furnacemen, Rollers, Drawers, Moulders and Related Metal Making and Treating Workers
7-4. Precision-Instrument Makers, Watchmakers, Jewellers and Related Workers
7-5. Toolmakers, Machinists, Plumbers, Welders, Platers and Related Workers
7-6. Electricians and Related Electrical and Electronics Workers
7-7. Carpenters, Joiners, Cabinetmakers, Coopers and Related Workers
7-8. Painters and Paperhangers
7-9. Bricklayers, Plasterers, and Construction Workers Not Elsewhere Classified
8-0. Compositors, Pressmen, Engravers, Bookbinders and Related Workers
8-1. Potters, Kilnmen, Glass and Clay Formers and Related Workers
8-2. Millers, Bakers, Brewmasters and Related Food and Beverage Workers
8-3. Chemical and Related Process Workers
8-4. Tobacco Preparers and Tobacco-Product Makers
8-5. Craftsmen and Production-Process Workers Not Elsewhere Classified
8-6. Packers, Labellers and Related Workers
8-7. Stationary-Engine and Excavating and Lifting Equipment Operators and Related Workers
8-8. Longshoremen and Related Freight Handlers
8-9. Labourers Not Elsewhere Classified

9-0. Fire Fighters, Policemen, Guards and Related Workers
9-1. Housekeepers, Cooks, Maids and Related Workers
9-2. Waiters, Bartenders and Related Workers
9-3. Building Caretakers, Cleaners and Related Workers
9-4. Barbers, Hairdressers, Beauticians and Related Workers
9-5. Launderers, Dry Cleaners and Pressers
9-6. Athletes, Sportsmen and Related Workers
9-7. Photographers and Related Camera Operators
9-8. Embalmers and Undertakers
9-9. Service, Sport and Recreation Workers Not Elsewhere Classified

X-1. New Workers Seeking Employment
X-2. Workers Reporting Occupations Unidentifiable or Inadequately Described
X-3. Workers Not Reporting Any Occupation

¹Major and minor groups only; for full details see ILO: International Standard Classification of Occupations (Geneva, 1958), first edition.