位于荷兰海牙的UDC Consortium目前负责维护《国际十进分类法》，在其主页UDC Website上有与UDC相关的丰富信息。当然，也有UDC的简表和多个通用复分表。
UDC大类如下：
0 GENERALITIES
1 PHILOSOPHY. PSYCHOLOGY
2 RELIGION. THEOLOGY
3 SOCIAL SCIENCES
4 留空
5 NATURAL SCIENCES
6 TECHNOLOGY
7 THE ARTS
8 LANGUAGE. LINGUISTICS. LITERATURE
9 GEOGRAPHY. BIOGRAPHY. HISTORY
附UDC简表：
Universal Decimal Classification
Summary of classification
0 GENERALITIES
00 PROLEGOMENA. FUNDAMENTALS OF KNOWLEDGE AND CULTURE
004 Computer science
005 Management
01 BIBLIOGRAPHY
02 LIBRARIANSHIP
030 ENCYCLOPAEDIAS. GENERAL REFERENCE WORKS
050 SERIAL PUBLICATIONS. PERIODICALS
06 ORGANIZATIONS AND ASSOCIATIONS
069 Museums
070 NEWSPAPERS. JOURNALISM
08 POLYGRAPHIES. COLLECTIVE WORKS
09 MANUSCRIPTS. RARE AND REMARKABLE WORKS
1 PHILOSOPHY. PSYCHOLOGY
101 Nature and role of philosophy
11 Metaphysics
13 Philosophy of mind and spirit
14 Philosophical systems
159.9 PSYCHOLOGY
16 Logic. Epistemology. Theory of knowledge
17 Moral philosophy. Ethics
2 RELIGION. THEOLOGY
21 PREHISTORIC AND PRIMITIVE RELIGIONS
22 RELIGIONS OF THE FAR EAST
23 RELIGIONS OF THE INDIAN SUBCONTINENT. HINDUISM. JAINISM. SIKHISM
24 BUDDHISM
25 RELIGIONS OF ANTIQUITY. MINOR CULTS AND RELIGIONS
252 Religions of Mesopotamia
254 Religions of Iran
257 Religions of Europe
26 JUDAISM
27 CHRISTIANITY
271 Eastern church
272/279 Western Church
272 Roman Catholic church
274/278 Protestant churches
28 ISLAM
282 Sunnite Islam
284 Shi’ite Islam
285 Babi-Baha’i
29 MODERN SPIRITUAL MOVEMENTS
3 SOCIAL SCIENCES
304 Social questions. Social practice.
308 Sociography. Descriptive studies of society
311 STATISTICS
314 DEMOGRAPHY
316 SOCIOLOGY
32 POLITICS
321 Forms of political organization. States as political power
323 Home affairs. Internal policy
324 Elections. Plebiscites. Referendums
327 International relations
328 Parliaments. Congresses. Representation of the people. Governments
329 Political parties and movements
33 ECONOMICS
331 Labour. Employment. Work. Labour economics. Organization of labour.
336 Finance
338 Economic policy. Management of the economy. Production. Services. Prices
339 Trade. Commerce. International economic relations. World economy
34 LAW. JURISPRUDENCE
341 International law
342 Public law. Constitutional law. Administrative law
343 Criminal law
343.9 Criminology
347 Civil law
35 PUBLIC ADMINISTRATION. GOVERNMENT
352/354 Levels of administration. Local, regional, central administration
355/359 MILITARY SCIENCE
36 SAFEGUARDING THE MENTAL AND MATERIAL NECESSITIES OF LIFE
364 SOCIAL WELFARE
368 Insurance. Communal provision through sharing of risk
37 EDUCATION
371 Organization of educational and training system. School organization
374 Education and training out of school. Further education
378 Higher education. Universities. Academic study
379.8 Leisure
39 ETHNOGRAPHY. FOLKLORE
391 Costume
392 Customs, manners, usage in private life
393 Death. Treatment of corpses. Funerals. Death rites
394 Public life. Social life. Life of the people
395 Social ceremonial. Etiquette. Good manners
398 Folklore in the strict sense.
396 FEMINISM
5 MATHEMATICS AND NATURAL SCIENCES
502/504 Environmental sciences. Conservation of natural resources. Threats to the environment and protection
51 MATHEMATICS
52 ASTRONOMY
528 Geodesy, cartography
529 Chronology
53 PHYSICS’
54 CHEMISTRY’
548 Crystallography
549 Mineralogy
55 EARTH SCIENCES
551.5 Meteorology. Climatology
551.7 Stratigraphy
552 Petrology
553 Economic geology
556 Hydrology
56 PALAEONTOLOGY
57 BIOLOGICAL SCIENCES
572 Anthropology
573 General biology
574 Ecology
575 Genetics
576 Cytology
577 Biochemistry. Biophysics
578 Virology
579 Microbiology
58 Botany
59 Zoology
6 APPLIED SCIENCES. MEDICINE. TECHNOLOGY
60 Biotechnology
61 MEDICINE
619 Veterinary medicine
62 ENGINEERING. TECHNOLOGY IN GENERAL
621 Mechanical engineering
621.3 Electrical engineering
621.38 Electronics
622 Mining
623 Military engineering
624 Civil engineering
625.1/.5 Railway engineering
625.7/.8 Highway engineering
626/627 Hydraulic engineering
628 Public health engineering
629 Vehicle engineering
63 AGRICULTURAL SCIENCES
630 Forestry
631/634 Farm management. Plant husbandry
635 Horticulture
636/638 Animal husbandry
639 Hunting. Fishing
64 HOME ECONOMICS
641/642 Cookery
643/649 Household equipment and management
65 MANAGEMENT
651 Office management
654 Telecommunications
655 PRINTING. PUBLISHING. BOOK TRADE
656 TRANSPORT AND POSTAL SERVICES
657 Accountancy
659 Publicity. Advertising. Public relations
66 CHEMICAL TECHNOLOGY
669 Metallurgy
67/68 INDUSTRIES, CRAFTS AND TRADES
69 BUILDING
7 THE ARTS
71 REGIONAL PLANNING
72 ARCHITECTURE
73 PLASTIC ARTS
74 DRAWING
745/749 APPLIED ARTS
75 PAINTING
76 GRAPHIC ARTS
77 PHOTOGRAPHY
78 MUSIC
79 RECREATION. ENTERTAINMENT. GAMES. SPORT
791 CINEMA. FILMS (MOTION PICTURES)
792 THEATRE
793 Dance
794 Board and table games
796/799 SPORT
8 LANGUAGE. LINGUISTICS. LITERATURE
80 PHILOLOGY
81 LINGUISTICS
811 Individual languages
82 LITERATURE
821 Literature of individual languages
9 GEOGRAPHY. BIOGRAPHY. HISTORY
902 ARCHAEOLOGY
903 Prehistory
904 Cultural remains of historical times
908 AREA STUDIES
91 GEOGRAPHY
929 BIOGRAPHY
929.5 Genealogy
929.6 Heraldry
93/99 HISTORY
930 Science of history. Ancillary historical sciences
930.1 History as a science. Theory and philosophy of history
930.25 Archivistics. Archives. Public records
930.27 Epigraphy. Palaeography
94 GENERAL HISTORY (Subdivision by auxiliaries of place – Table 1e, time – Table 1g and ethnic grouping – Table 1f))
94(100) History of the world
94(3) History of the ancient world
94(4) History of Europe
94(5) History of Asia
94(6) History of Africa
94(7/8) History of the Americas
94(9) History of Oceania, the Polar regions, Australasia, etc.