110. Legislators, public officials
111. Legislators and senior government officials
112. Directors and chief executives in public administration
113. Senior judicial officials
114. Senior officials of national and international interest organizations
120. Managers of large firms
121. Entrepreneurs and CEOs of large private entreprises
122. Corporate managers of large private firms
123. Department managers of large private firms
130. Managers of small firms
131. Entrepreneurs, managers and chiefs of small firms
210. Professionals in natural sciences
211. Mathematicians, physicians and natural scientists
220. Professionals in engineering and architecture
221. Engineers
222. Architects, town planners and specialists in land conservation and recovery
230. Professional in life sciences
231. Life science professionals
240. Professionals in health science
241. Health specialists: Physicians
242. Nursing and midwifery associate professionals
250. Professionals in human, legal and social sciences
251. Business, management and banking professionals
252. Social science professionals
253. Legal professionals
254. Linguistics, literature and  related professionals
255. Art and artistic disciplines professionals
256. Religious professionals
260. Professionals in teaching and research
261. University teaching professionals (full and associate professors)
262. Researchers and graduated technicians
263. Secondary and post-secondary education teaching professionals
264. Primary and pre-primary education teaching professionals
265. Other education and teaching professionals (graduated) (inspectors, principals, etc.)
310. Associate professionals in natural sciences and engineering
311. Quantitative sciences, physics and chemistry technicians
312. Engineering sciences technicians
313. Ship and aircraft technicians
314. Optical and electronical equipment operators
315. Safety, quality and environmental protection technicians
320. Associate professionals in health care and life sciences
321. Health care associate professionals
322. Life sciences technicians
330. Associate professionals in business & administration
331. Administrative and management associate professionals
332. Finance and insurance technicians
333. Trade brokers
334. Business services agents and related associate professionals
340. Associate professionals in  public & personal services
341. Tourism and hospitality associate professionals
342. Primary, pre-primary and special education teaching associate professionals
343. Athletes, trainers and related professionals
344. Entertainment and cultural services technicians
345. Social work technicians
346. Security and public services technicians
410. Office clerks
411. Secretaries and keyboard-operating clerks
412. Numerical clerks (administrative, financial, management)
413. Material-recording and transportation clerks
414. Library, mail and related clerks
420. Cashier, tellers, and related workers
421. Cashiers, tellers and related clerks
422. Receptionists and information clerks
510. Shopkeepers and salespersons
511. Wholesale shopkeepers and related workers
512. Salespersons in retail trade
513. Models, demonstrators and related workers
520. Restaurants, bars and hotels workers
521. Hospitality, tourism and related services workers
522. Restaurants and retail trade workers
531. Instructors and masters of craftmanship and artistic products
541. Health care skilled workers
550. Personal services, security, professional cleaning, and recreational services workers
551. Entertainment and cultural services skilled workers
552. Laundry and dyeing skilled workers
553. Personal services and related skilled workers
554. Protective services and related workers
610. Extraction and building skilled workers
611. Miners, shotfirers, stone cutters and carvers
612. Building frame and related trades workers
613. Building finishers and related trades workers
614. Painters, building structure cleaners and related trades workers
615. Building caretakers, window and related cleaners
620. Metal, machinery and related skilled workers
621. Metal moulders, welders, sheet-metal workers, structural- metal preparers, and related trades workers
622. Blacksmiths, tool-makers and related trades workers
623. machinery mechanics and fitters (except industrial assembly-line workers)
624. Electrical and electronic equipment mechanics and fitters
625. Ship engine mechanics and fitters
630. Precision, handicraft etc skilled workers
631. Metal, machinery and related trade workers
632. Potters, glass-makers and related trades workers
633. Handicraft workers in wood, textile, leather and related materials
634. Craft printing and related trades workers
640. Agricultural and fishery skilled workers
641. Skilled agricultural workers
642. Skilled animal producers
643. Mixed crop and animal producers
644. Skilled forestry workers
645. Fishery workers and hunters
650. Food, wood, textile, garments, leather skilled workers
651. Food processing and related trades skilled workers
652. Wood treaters and related trades skilled workers
653. Textile, garment and related trades skilled workers
654. Leather and shoemaking trades skilled workers
661. Craftmen and manual workers in the entertainment business
710. Industrial plant operators
711. Mining and mineral-processing-plant operators
712. Metal-processing-plant operators
713. Glass, ceramics and related plant operators
714. Wood-processing- and papermaking-plant operators
715. Chemical-processing plant operators
716. Power-production and related plant operators
717. Automated-assembly-line and industrial-robot operators
720. Stationary plant semi-skilled operators, assemblers, line operators
721. Metal and mineral-processing-plant operators
722. Chemical products machine operators
723. Rubber- and plastic-products machine operators
724. Wood-products-plant operators
725. Printing-, binding- and paper-products machine operators
726. Textile-, fur- and leather-products machine operators
727. Industrial products assemblers
728. Assembler machines operators
730. Agriculture stationary plant operators
731. Agriculture machine operators
732. Food and related products machine operators
740. Drivers and mobile plaal servicesnt operators
741. Locomotive engine drivers and related workers
742. Motor- and animal-drawn vehicles drivers
743. Motorised farm and forestry plant operators
744. Mobile-plant operators (excl. agricultural)
745. Ships’ deck crews and related workers
810. Messengers, doorkeepers and related
811. Unskilled office clerks
812. Communication and storage unskilled workers, freight handlers
820. Restaurants and hotels unskilled workers, street vendors
821. Streer vendors
822. Touristic services unskilled workers
831. Janitors and related workers
832. Porters and related workers
840. Personal services unskilled workers
841. Entertainment and cultural services unskilled workers
842. Unskilled cleaners and launderers
843. Domestic, personal and institution-based services helpers
844. Security services unskilled workers
850. Agriculture unskilled workers
851. Unskilled agricultural labourers
852. Unskilled fishery, forestry, animal breeding and hunting labourers
860. Mining, extraction and building unskilled workers
861. Unskilled labourers in mining
862. Unskilled labourers in construction and related trades
863. Unskilled labourers in industrial manufacturing and related trades
900. Armed forces
991. Family helpers in medium and large firms
992. Family helpers in small firms