0. NIU (not in universe)
1100. Architects
1101. Civil engineers and construction engineers
1102. Mining, metallurgy, and petroleum engineers
1103. Topography, hydrology, geology, and geodesic engineers
1104. Chemical, industrial, and mechanical engineers
1105. Electrical, electronic, information, and telecommunication engineers
1109. Other occupations that make up this subgroup
1110. Physicists and astronomers
1111. Mathematicians and statisticians
1120. Chemists
1121. Pharmacists
1130. General doctors and specialists
1131. Nursing professionals
1132. Dentists
1133. Ophthalmologists
1134. Professional in nutrition
1135. Biomedics and geneticists
1139. Other occupations that make up this subgroup
1140. Biologists
1141. Ecologists and professionals in atmospheric sciences
1142. Professionals in sea and oceanography sciences
1150. Agronomists
1151. Veterinarians and zoo technicians
1152. Forestation professionals
1153. Professionals in fishing and aquaculture
1160. Lawyers
1161. Sociologists and demographers
1162. Professionals in political sciences and public administration
1163. Anthropologists and historians
1164. Psychologists
1165. Professionals in philosophy and letters
1166. Educators
1167. Professionals in communication sciences
1168. Geographers
1169. Other occupations that make up this subgroup
1170. Economists
1171. Business administrators
1172. Professionals in archive and library sciences
1173. Public accountants
1174. Professionals in marketing
1175. Professionals in hotel management and tourism
1180. Religious professionals
1190. Other occupations that make up this group
1200. Technicians in architecture and industrial and graphic design
1201. Technicians in civil and construction engineering
1202. Technicians in mining, metallurgy, and petroleum engineering
1203. Technicians in topographic, hydraulic, geological and geodesic engineering
1204. Technicians in industrial, chemical, and mechanical engineering
1205. Technicians in electrical, electronic, information, and telecommunications engineering
1206. Technicians in operating film, projection, television and other recording equipment
1209. Other occupations that make up this subgroup
1210. Technicians in physics
1211. Technicians in mathematics and statistics
1220. Nurses and technicians in human medicine
1221. Technicians in dentistry and dental mechanics
1222. Optometrists and other technicians in optometry
1223. Nutritionists, dentists, and other technicians in nutrition and diet
1229. Other occupations that make up this subgroup
1230. Chemical and biological laboratory technicians
1231. Pharmaceutical laboratory technicians
1239. Other occupations that make up this subgroup
1240. Agronomy technicians
1241. Veterinary and zoology technicians
1242. Fishing technicians
1243. Forestry and forestation technicians
1249. Other occupations that make up this subgroup
1250. Technicians in social sciences
1251. Technicians in economic administrative sciences
1260. Personnel at the technical level in religious activities
1290. Other occupations that make up this group
1300. Professors in universities and other higher education establishments
1310. Vocational, preparatory and equivalent professors
1320. High school professors
1330. Elementary school professors
1331. Literacy teachers and bilingual teachers and promoters
1340. Preschool professors
1350. Teachers of people with mental deficiencies and behavioral problems
1351. Teachers of the blind
1352. Teachers of people with hearing and language deficiencies
1353. Teachers of persons with motor difficulties
1359. Other occupations that make up this subgroup
1360. Professor of physical education
1361. Professors of artistic education
1362. Professors of technical and commercial education
1369. Other occupations that make up this subgroup
1390. Other occupations that make up this group
1400. Writers and critics
1401. Newspaper reporters and writers
1410. Composers
1411. Singers
1412. Musicians
1413. Actors
1414. Dancers
1419. Other occupations that make up this subgroup
1420. Artistic painters and drawing artists
1421. Sculptors and engravers
1422. Photographers
1423. Choreographers and scene directors
1424. Decorators and designers
1425. Publicists
1429. Other occupations that make up this subgroup
1430. Directors of artistic productions
1431. Producers and organizers of artistic and cultural activities
1432. Announcers, directors, and commentators on radio and television
1439. Other occupations that make up this group
1440. Professional sportsmen and bullfighters
1450. Umpires and sports judges
1451. Sports trainers, instructors, and coordinators
1490. Other occupations that make up this group
2100. High-level government authorities and legislators
2101. Municipal presidents
2110. Presidents, directors, and general managers in decentralized public institutions and firms
2111. Presidents, directors, and general managers in private institutions and firms
2119. Other occupations that make up this subgroup
2120. Directors, managers, and administrators in health services
2121. Directors, managers, and administrators in administration and finances
2122. Directors, managers, and administrators in commercial activities
2123. Directors, managers, and administrators in communications and transportation
2124. Directors, managers, and administrators in industrial manufacturing activities
2125. Directors, managers, and administrators in social, cultural, personal and service services
2126. Directors and coordinators in the area of teaching and investment centers
2127. Managers and administrators of small businesses (movies, hotels, restaurants, sports, etc.)
2128. Directors, managers, and administrators in the agricultural sector
2129. Other occupations that make up this subgroup
2130. Directors of political parties
2131. Directors of business organizations
2132. Directors of union organizations
2133. Directors of humanitarian and religious organizations and civic associations
2139. Other occupations that make up this subgroup
2190. Other occupations that make up this group
4100. Workers in harvesting corn and/or beans
4101. Workers in harvesting cereals
4102. Workers in harvesting cotton and/or henequen
4103. Workers in harvesting vegetables
4104. Workers in harvesting coffee and/or cocoa
4105. Workers in harvesting tobacco
4106. Workers in harvesting fruit
4107. Workers in harvesting flowers
4108. Workers in other agricultural harvests not mentioned above
4109. Other occupations that make up this subgroup
4110. Workers in breeding bovine cattle
4111. Workers in breeding pigs
4112. Workers aviculture breeding
4113. Workers in breeding goats and sheep
4114. Beekeeping workers
4115. Workers in breeding small species (rabbits, pigeon, duck, etc.)
4116. Workers in breeding equines (horses, donkeys, mules)
4119. Other occupations that make up this subgroup
4120. Workers who combine agricultural activities with cattle
4121. Workers who carry out support services for agricultural production
4130. Lumbermen, log splitters, tree cutters, and similar
4131. Rubber, gum, and resin harvesters and similar
4132. Greenhouse or nursery (plant) workers
4133. Workers in activities that involve planting, reforesting, and conservation of forests
4134. Firewood cutters and collectors
4135. Producers of charcoal
4136. Workers in the collection of plants, herbs, and roots that are not cultivated
4139. Other occupations that make up this subgroup
4140. Workers in activities that involve hunting, trapping and similar occupations
4150. Fishermen
4151. Workers in aquaculture
4159. Other occupations that make up this subgroup
4160. Workers in activities involving processing agricultural products
4161. Workers in activities involving processing fishing products
4169. Other occupations that make up this subgroup
4170. Foremen, overseers and similar in agricultural activities
4171. Foremen, overseers and similar in cattle activities
4172. Foremen, overseers and similar in forestry activities
4173. Foremen, overseers and similar in fishing activities
4179. Other occupations that make up this subgroup
4180. Contractors of labor for agricultural, cattle, etc. activities
4190. Other occupations that make up this group
5100. Heads, coordinators, supervisors, and contractors in the production of foods, beverages, and tobacco
5101. Superintendents, inspectors, and examiners in the production of foods, beverages, and tobacco products
5102. Foremen, contractors, and production chiefs in the production of foods, beverages, and tobacco products
5110. Heads, coordinators, supervisors, and contractors in the extraction of mines, quarries, and wells
5111. Superintendents, inspectors, and examiners in the extraction of mines, quarries, and wells
5112. Foremen, contractors, and production chiefs in the extraction of mines, quarries, and wells
5120. Heads, coordinators, supervisors, and contractors in the production of textiles and leather and fur products
5121. Superintendents, inspectors, and examiners in the production of textiles, leather, furs, and similar
5122. Foremen, contractors, and production chiefs in the production of textiles, leather, furs, and similar
5130. Heads, coordinators, supervisors, and contractors in the production of wood and paper and printing
5131. Superintendents, inspectors, and examiners in the production of wood and paper, and printing
5132. Foremen, contractors, and production chiefs in the production of wood and paper and printing
5140. Heads, coordinators, supervisors, and contractors in the production of metal and restoring and maintenance
5141. Superintendents, inspectors, and examiners in the production of metal and in metal products, restoring and maintenance
5142. Foremen, contractors, and production chiefs in the production of metal products and manufacturing, restoring and maintenance
5150. Heads, coordinators, supervisors, and contractors in the production of wax, and glass and others
5151. Superintendents, inspectors, and examiners in the production of ceramic, glass, and others
5152. Foremen, contractors, and production chiefs in the production of ceramics, glass and other minerals
5160. Heads, coordinators, supervisors, and contractors in construction
5161. Superintendents, inspectors, and examiners in construction
5162. Foremen, contractors, and production chiefs in construction
5170. Heads, coordinators, supervisors, and contractors in the energy production, electricity and telecommunications
5171. Superintendents, inspectors, and examiners in the energy generation, electricity, and telecommunications
5172. Foremen, contractors, and production chiefs in the generation of energy, electricity, and telecommunications
5180. Heads, coordinators, supervisors, and contractors in the production of chemicals and petrochemicals
5181. Superintendents, inspectors, and examiners in the production of chemicals and petrochemicals
5182. Foremen, contractors, and production chiefs in the production of chemicals, petroleum, rubber, and plastics
5190. Other heads, coordinators, supervisors, and contractors not listed elsewhere
5191. Other superintendents, inspectors, and examiners not listed elsewhere
5192. Other foremen, contractors, and production chiefs not classified elsewhere
5200. Workers in the elaboration of meat and fish products and derivatives
5201. Workers in the elaboration of milk and dairy products
5202. Workers in the elaboration of bread, tortillas, and other cereal products
5203. Workers in the elaboration of products made with fruits and vegetables
5204. Workers in the elaboration of sugar, coffee, chocolate, tea, and candies
5205. Workers in the elaboration of tobacco products
5206. Workers in the elaboration of alcoholic and non-alcoholic beverages
5207. Workers in the elaboration of oils, greases, and spices
5208. Workers in the elaboration of foods
5209. Other occupations that make up this subgroup
5210. Miners
5211. Quarry workers (in the extraction of quarries, clay, sand, coal, etc.)
5212. Chipper, breaker, and masher in mine extraction
5213. Mine sampler
5219. Other occupations that make up this subgroup
5220. Fiber preparers
5221. Bobbin winders
5222. Weavers
5223. Tailors, clothing designers and seamstresses who produce clothing and hats
5224. Manufacture and pattern cutters in fabric, leather, fur, and similar
5225. Hand sewers and embroiderers
5226. Upholsterers
5227. Leather workers, cutters, tanners, and painters of leather and furs
5228. Shoemakers and similar workers
5229. Other occupations that make up this subgroup
5230. Carpenters, cabinetmakers, varnishers, wood finishers, and similar
5231. Artisans and factory workers in the manufacture of wood products and similar
5232. Artisans and factory workers in the manufacture of paper and cardboard products
5233. Printing and factory workers in binding and photogravure
5234. Linotypes, typesetters, and engravers
5235. Photograph developers and printers and similar
5239. Other occupations that make up this subgroup
5240. Mold makers and boiler makers
5241. Welders and oxyfuel cutters
5242. Metal coaters, chromists, and metal painters
5243. Jewelers, goldsmiths, silversmiths, tinsmiths, and bronze workers
5244. Locksmiths, metal polishers, and tool sharpeners
5245. Mechanics, adjusters, and workers in the maintenance and repair of motor vehicles
5246. Mechanics, adjusters, and workers in the maintenance and repair of machinery, etc.
5247. Mechanics, adjusters, and workers in the maintenance and repair of musical instruments
5248. Blacksmiths, decorative metal workers, and forge workers
5249. Other occupations that make up this subgroup
5250. Clay workers and ceramic workers
5251. Workers in the manufacture of marble, porcelain, tiles and similar
5252. Workers in the manufacture of cement, limestone, chalk, concrete and similar products
5253. Glass workers and similar
5254. Workers in the manufacture of products made of bone, shell, coral, and similar
5259. Other occupations that make up this subgroup
5260. Construction day laborers
5261. Wide-brush painters
5262. Chalk workers, crown makers, and other workers who cover ceiling and walls
5263. Roofer (installers of shingles, etc.)
5264. Mosaic installers, tile installers, and installers of floors and pavements
5265. Installers of insulators and climate controls
5266. Installers of materials for impermeablizing, glass, wall paper, carpets, and other materials
5267. Plumbers, pipe fitters, and pipe installers
5269. Other occupations that make up this subgroup
5270. Electricians and linemen
5271. Repairmen of electro-domestic appliances
5272. Repairmen of radios, televisions, and electronic equipment
5273. Installers and repairmen of telegraphs and telephones
5274. Installers and repairmen of telecommunication equipment
5275. Repairmen of electromechanical appliances
5279. Other occupations that make up this subgroup
5280. Workers in the manufacture and repair of rubber products
5281. Workers in the manufacture of chemical substances and compounds
5290. Other occupations that make up this subgroup
5300. Operators of machinery for the preparation of meat, fish and derivatives
5301. Operators of machinery for the production of milk and dairy products
5302. Operators of machinery for the production of bread, tortillas, pastries and other products
5303. Operators of machinery for the preparation of fruits and vegetables
5304. Operators of machinery for the production of sugar, coffee, chocolate, tea, and candies
5305. Operators of machinery for the production of tobacco and cigarettes
5306. Operators of machinery for the production of alcoholic and non-alcoholic beverages
5307. Operators of machinery for the production of oils, fats, and spices
5309. Other occupations that make up this subgroup
5310. Operators of machinery and equipment used for extraction in mines and quarries
5311. Operators of machinery and equipment used for extraction in petroleum wells
5312. Operators of machinery and equipment used for obtaining water
5319. Other occupations that make up this subgroup
5320. Operators of machines for threading and bobbin winding
5321. Operators of looms and machinery for manufacturing knits, textiles, etc.
5322. Operators of sewing machines, embroidering machines, and machines for cutting fabric in textile production
5323. Operators in machinery in the production of footwear and manufacture of products made of leather and furs
5324. Operators of machinery for whitening, dying, etc., textile products, leather and furs
5329. Other occupations that make up this subgroup
5330. Operators of machinery for treating triply and layered wood and fabrics
5331. Operators of machinery in the manufacture of cellulose and paper manufacture
5332. Operators of machinery for manufacture of wood products and similar
5333. Operators of machinery for printing and binding
5334. Operators of machinery for the manufacture of paper and cardboard products
5335. Operators of machinery of developing and printing photographic work and similar
5339. Other occupations that make up this subgroup
5340. Operators of metallurgy ovens, filters, and laminators
5341. Operators of machinery for the thermal treatment of metals
5342. Operators of machinery for flattening and stretching metals
5343. Operators of machinery for die pressing and shredding metals
5344. Operators of tooling machines for metals (lathes, drills, etc.)
5345. Operators of machinery for polishing, galvanizing, and coating metals
5346. Operators of machinery in the manufacture of machinery, and metal products and parts
5347. Assembly and installation of precision machinery and instruments
5348. Assembly and installation of electric and electronic parts
5349. Other occupations that make up this subgroup
5350. Operators of machinery in the production of ceramic goods
5351. Operators of machinery in the production of marble, mosaic, tiles, and similar
5352. Operators of machinery in the production of cement, limestone, chalk, and similar
5353. Operators of machinery in the production of glass products
5354. Operators of machinery in the production of non-metal minerals
5359. Other occupations that make up this subgroup
5360. Operators of specialized portable equipment for construction
5370. Operators of installation and plants that generate and distribute electrical energy
5371. Operators of turbines, boilers, and steam machines
5372. Operators of equipment for telecommunications and electronic control
5373. Operators of equipment for pumping, ventilation, and refrigeration
5379. Other occupations that make up this subgroup
5380. Operators of machinery and equipment for breaking, crushing and mixing chemical products
5381. Operators of machinery and equipment for treating water and chemical substances
5382. Operators of machinery and equipment in petroleum refineries and natural gas industries
5383. Operators of machinery for manufacturing pharmaceutical products and cosmetics
5384. Operators of machinery for manufacturing photographic products
5385. Operators of machinery for manufacturing and retreading tires
5386. Operators of machinery for manufacturing and assembling plastic products, etc.
5389. Other occupations that make up this subgroup
5390. Other occupations that make up this group
5400. Assistants, helpers, and workers in the production of food, beverages, and tobacco products
5401. Suppliers, feeders, recovery and classification in the production of food, beverages, and tobacco
5402. Carriers, loaders and unloaders in the production of food, beverages, and tobacco products
5403. Packers, packagers, and bottlers in the production of food, beverages, and tobacco products
5410. Assistants, helpers, and workers in the extraction from mines, quarries, and wells
5411. Carriers, loaders and unloaders in extraction from mines, quarries, and wells
5420. Assistants, helpers, and workers in textile production, leather production and similar
5421. Suppliers, feeders, recovery and classification in the production of textile and leather
5422. Carriers, loaders and unloaders in textile, leather, fur and similar production
5423. Packers, packagers, and bottlers in the production of textiles, leather, fur and similar
5430. Assistants, helpers, and workers in the production of wood, paper, and printing
5431. Suppliers, feeders, recovery and classification in the production of wood, paper, and printing
5432. Carriers in the production of wood, paper, and printing products
5433. Packers and packagers in the production of wood, paper, and printing products
5440. Assistants and similar in the production of metal and manufacture of machinery
5441. Suppliers and similar in the production of metal and manufacture of machinery
5442. Carriers, loaders and unloaders in the production of metal and manufacture of machinery
5443. Packers, packagers, and bottlers in metal production and manufacture of machinery
5450. Assistants, helpers, and workers in the production of ceramic, glass and non-metal materials
5451. Suppliers, feeders, and recovery in the production of ceramics, glass and non-metal materials
5452. Carriers, loaders and unloaders in the production of ceramics and other non-metal minerals
5453. Packers, packagers, and bottlers in metal production and manufacture of ceramics and other non-metal minerals
5460. Assistants, helpers, and workers in the construction
5461. Carriers, loaders and unloaders in the construction
5470. Assistants, helpers, and workers in production of energy, electricity and telecommunications
5471. Carriers, loaders and unloaders in the production of energy, electricity and telecommunications
5472. Packers, packagers, and bottlers in the production of energy, electricity and telecommunications
5480. Assistants, helpers, and workers in chemical and petrochemical industries and production
5481. Suppliers, feeders, recovery and classification in the production of chemicals and petrochemicals
5482. Carriers, loaders and unloaders in chemical and petrochemical production
5483. Packers, packagers, and bottlers in chemical and petrochemical production
5490. Other assistants, helpers, and workers not classified elsewhere
5491. Other suppliers, feeders, recovery and classification not listed elsewhere
5492. Other carriers, loaders and unloaders not classified elsewhere
5493. Other packers, packagers, and bottlers not classified elsewhere
5500. Conductors of mobile agricultural machinery
5501. Conductors of mobile construction machinery
5502. Conductors of mobile machinery for moving merchandise in factories, ports, etc.
5509. Other occupations that make up this subgroup
5510. Conductors of railroad transportation (train, metro, light rail)
5511. Assistants to the conductors in railroad transportation
5520. Conductors of buses, trolleys, and passenger buses
5521. Drivers of cargo trucks
5522. Taxi drivers and drivers of cars and small buses
5523. Assistants to the drivers
5529. Other occupations that make up this subgroup
5530. Drivers of air transportation
5540. Drivers of maritime transportation
5541. Machinist officers
5542. Deck officers
5543. Motor boat drivers, boaters, and operators of small boats
5549. Other occupations that make up this subgroup
5550. Drivers of transportation vehicles that use human force
5551. Drivers of transportation vehicles that use animal force (carts, mule trains)
5590. Other occupations that make up this group
6100. Heads of department, section and area
6101. Administrative coordinators and supervisors
6102. Assistants to the head [of department, etc]
6103. Regulation inspectors
6104. Contractor, coordinator and traffic supervisor for air, maritime, railroad and land traffic
6109. Other occupations that make up this subgroup
6110. Secretaries
6111. Typists, short-hand takers, stenographers
6112. Copyists
6120. Workers at mid- and lowers level in accounting
6121. Workers at mid- and lowers level in banking and finances
6122. Workers at mid- and lowers level in elaboration of statistics
6123. Accounts payable, cashiers, account collectors
6124. Ticket vendors and ticket office workers
6129. Other occupations that make up this subgroup
6130. Operators of office machinery (copier, mimeograph, telex, etc.)
6131. Operators of electronic processing equipment
6139. Other occupations that make up this subgroup
6140. Workers in a library, newspaper library, library of tape recordings, and museums
6141. Workers in an archive and correspondence
6142. Control workers in stores and warehouses
6149. Other occupations that make up this subgroup
6150. Receptionists and other workers who attend the public
6151. Workers in travel agencies
6152. Workers in administrative services in general
6159. Other occupations that make up this subgroup
6160. Telephone operators
6161. Telegraph operators
6169. Other occupations that make up this subgroup
6170. Mailmen
6171. Workers in messenger services in general
6179. Other occupations that make up this subgroup
6180. Dispatch, inspection and similar occupations in air transportation
6181. Dispatch, inspection and similar occupations in maritime transportation
6182. Dispatch, inspection and similar occupations in railroad transportation
6183. Dispatch, inspection and similar occupations in land transportation
6189. Other occupations that make up this subgroup
6190. Other occupations that make up this group
7100. Commerce in general and specialized commerce in fixed establishments
7110. Agents and supervisors of commerce
7111. Employees and dependents of commerce
7120. Exhibitors
7121. Dispatchers
7122. Delivery persons
7130. Sales agents, representatives, distributors, and suppliers
7131. Real estate agents, and agents in services of real-estate rental
7132. Agents of stocks, bonds, and other investment titles
7133. Insurance agents
7134. Assessors
7135. Auctioneers
7139. Other occupations that make up this subgroup
7190. Other occupations that make up this group
7200. Newspaper vendors who walk the streets to sell
7201. Lottery vendors who walk the streets to sell
7202. Vendors who walk the streets to sell diverse articles
7209. Other occupations that make up this subgroup
7210. Vendors and preparers of foods on the roadside
7211. Shoeshiners
7212. Car washers and car watchers
7213. Clowns, contortionists, and similar occupations carried out on the roadside
7219. Other occupations that make up this subgroup
7290. Other occupations that make up this group
8100. Restaurateurs (they prepare and serve food)
8101. Bartenders, waiters, and room keepers
8102. Hotel workers, bellhops, and workers in the hospitality services
8103. Employees in clothing care (dressing rooms)
8104. Stewardesses and flight attendants
8109. Other occupations that make up this subgroup
8110. Laundresses
8111. Dyers
8112. Pressers
8119. Other occupations that make up this subgroup
8120. Porters and concierges
8121. Lift and elevator operators
8122. Luggage carriers and store packagers
8123. Cleaning workers in offices, schools, hospitals and other establishments
8124. Gardeners
8125. Merchandise loaders and unloaders
8129. Other occupations that make up this subgroup
8130. Hairdressers, barbers, and stylists
8131. Hairstylists, make up artists, manicurists, and pedicurists
8132. Bathers and massage therapists
8140. Workers in real estate rental services
8150. Animators and announcers
8151. Magicians, illusionists, imitators, and similar workers in an establishment
8152. Clowns, contortionists, circus workers and similar occupations in an establishment
8160. Support workers for carrying out entertainment, tourism and sports activities
8161. Workers in the care and assistance to persons (do not include nurses)
8162. Prostitution workers
8169. Other occupations that make up this subgroup
8170. Workers in funeral services and cemeteries
8190. Other occupations that make up this subgroup
8200. Administrators in domestic services
8201. Workers in domestic services in general and specialized domestic services
8202. Persons dedicated to caring for the elderly, persons who are ill, and children in private homes
8209. Other occupations that make up this group
8300. Firemen (fire fighters)
8301. Police and transit agents
8302. Detectives
8303. Watchmen and guards
8304. Personnel of customs and migration
8309. Other occupations that make up this subgroup
8310. Workers of the air force
8311. Workers of the navy
8312. Workers of the army (land-based armed forces)
8319. Other occupations that make up this subgroup
8390. Other occupations that make up this group
9900. Other occupations not classified above
9910. Not sufficiently specified
9920. Not specified
9996. Other occupations that make up this subgroup
9999. Unknown